Medium Input validation

CVE-2021-36324 — Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious...

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

Published Nov 12, 2021 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: dell

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+2
Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.24%

ahead of 14% of scored CVEs · Oct 14, 2026

Affects

Dell

Alienware 13 R3 Firmware and 283 more

CVSS base

6.7

Medium · 4 source(s)

Prioritization reference: 7.5 provisional

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Total

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Dell Alienware 13 R3 Firmware, Dell Alienware 15 R3 Firmware, Dell Alienware 15 R4 Firmware…).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (input validation), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Dell	Alienware 13 R3 Firmware	< 1.13.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware 15 R3 Firmware	< 1.13.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware 15 R4 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware 17 R4 Firmware	< 1.13.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware 17 R5 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware Area 51m R1 Firmware	< 1.15.1	Vulnerable	NIST National Vulnerability Database
Dell	Alienware Area 51m R2 Firmware	< 1.10.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware Aurora R11 Firmware	< 1.0.9	Vulnerable	NIST National Vulnerability Database
Dell	Alienware Aurora R12 Firmware	< 1.1.7	Vulnerable	NIST National Vulnerability Database
Dell	Alienware Aurora R7 Firmware	< 1.0.25	Vulnerable	NIST National Vulnerability Database
Dell	Alienware Aurora R8 Firmware	< 1.0.17	Vulnerable	NIST National Vulnerability Database
Dell	Alienware Aurora R9 Firmware	< 1.0.14	Vulnerable	NIST National Vulnerability Database
Dell	Alienware Aurora Ryzen Edition Firmware	< 2.2.4	Vulnerable	NIST National Vulnerability Database
Dell	Alienware M15 R1 Firmware	< 2.9.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware M15 R2 Firmware	< 1.9.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware M15 R3 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware M17 R1 Firmware	< 2.9.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware M17 R2 Firmware	< 1.9.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware M17 R3 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware X15 R1 Firmware	< 1.4.0	Vulnerable	NIST National Vulnerability Database
Dell	Alienware X17 R1 Firmware	< 1.4.0	Vulnerable	NIST National Vulnerability Database
Dell	Chengming 3977 Firmware	< 1.13.0	Vulnerable	NIST National Vulnerability Database
Dell	Chengming 3980 Firmware	< 2.19.0	Vulnerable	NIST National Vulnerability Database
Dell	Chengming 3988 Firmware	< 1.7.0	Vulnerable	NIST National Vulnerability Database
Dell	Chengming 3990 Firmware	< 1.5.1	Vulnerable	NIST National Vulnerability Database
Dell	Chengming 3991 Firmware	< 1.5.1	Vulnerable	NIST National Vulnerability Database
Dell	CPG BIOS	< 1.13.0	Vulnerable	CVE Program (cve.org) e CISA ADP
Dell	Embedded Box Pc 5000 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	G3 3579 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	G3 3590 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	G3 3779 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	G5 5000 Firmware	< 1.3.0	Vulnerable	NIST National Vulnerability Database
Dell	G5 5090 Firmware	< 1.9.0	Vulnerable	NIST National Vulnerability Database
Dell	G5 5587 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	G5 5590 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	G7 7587 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	G7 7588 Firmware	≤ 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	G7 7590 Firmware	≤ 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	G7 7790 Firmware	≤ 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 13 5378 Firmware	< 1.34.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 13 5379 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 14 3467 Firmware	< 2.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 14 5468 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 15 3567 Firmware	< 2.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 15 5566 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 15 5578 Firmware	< 1.34.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 15 5579 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 15 5582 Firmware	< 2.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 15 7570 Firmware	< 1.20.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 15 7572 Firmware	< 1.8.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 15 7573 Firmware	< 1.20.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 15 7577 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 17 7773 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3268 Firmware	< 1.17.1	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3277 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3280 Firmware	< 1.12.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3470 Firmware	< 2.19.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3471 Firmware	< 1.7.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3476 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3477 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3480 Firmware	< 1.15.0< 1.12.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3481 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3576 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3580 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3581 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3668 Firmware	< 1.17.1	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3670 Firmware	< 2.19.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3671 Firmware	< 1.7.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3780 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3781 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3880 Firmware	< 1.5.1	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 3881 Firmware	< 1.5.1	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5370 Firmware	< 1.19.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5400 Firmware	< 1.5.2	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5401 Firmware	< 1.5.2	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5477 Firmware	< 1.2.15	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5480 Firmware	< 2.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5481 Firmware	< 2.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5482 Firmware	< 2.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5490 Firmware	< 1.10.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5491 Firmware	< 1.10.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5570 Firmware	< 1.6.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5580 Firmware	< 2.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5680 Firmware	< 2.7.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 5770 Firmware	< 1.6.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7370 Firmware	< 1.20.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7373 Firmware	< 1.20.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7380 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7386 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7467 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7472 Firmware	< 1.8.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7567 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7580 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7586 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7590 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7591 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7700 Firmware	< 1.5.2	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7777 Firmware	< 1.2.15	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7786 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Inspiron 7790 Firmware	< 1.10.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3180 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3189 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3190 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3300 Firmware	< 1.12.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3310 Firmware	< 1.11.1	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3379 Firmware	< 1.0.31	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3380 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3390 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3470 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3480 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3490 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3551 Firmware	< 1.7.1	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3570 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3580 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 3590 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5175 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5179 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5280 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5285 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5288 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5289 Firmware	< 1.24.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5290 Firmware	< 1.18.0< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5300 Firmware	< 1.17.1	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5310 Firmware	< 1.8.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5400 Firmware	< 1.12.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5401 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5410 Firmware	< 1.7.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5411 Firmware	< 1.7.1	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5480 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5488 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5490 Firmware	< 1.18.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5491 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5500 Firmware	< 1.12.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5501 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5510 Firmware	< 1.7.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5511 Firmware	< 1.7.1	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5580 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5590 Firmware	< 1.18.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 5591 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7200 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7210 Firmware	< 1.8.1	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7275 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7280 Firmware	< 1.22.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7285 Firmware	< 1.12.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7290 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7300 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7310 Firmware	< 1.8.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7370 Firmware	< 1.25.4	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7380 Firmware	< 1.22.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7389 Firmware	< 1.24.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7390 Firmware	< 1.21.0< 1.20.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7400 Firmware	< 1.14.0< 1.13.2	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7410 Firmware	< 1.8.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7480 Firmware	< 1.22.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 7490 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 9410 Firmware	< 1.8.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude 9510 Firmware	< 1.7.1	Vulnerable	NIST National Vulnerability Database
Dell	Latitude E5270 Firmware	< 1.27.3	Vulnerable	NIST National Vulnerability Database
Dell	Latitude E5470 Firmware	< 1.27.3	Vulnerable	NIST National Vulnerability Database
Dell	Latitude E5570 Firmware	< 1.27.3	Vulnerable	NIST National Vulnerability Database
Dell	Latitude E7270 Firmware	< 1.30.3	Vulnerable	NIST National Vulnerability Database
Dell	Latitude E7470 Firmware	< 1.30.3	Vulnerable	NIST National Vulnerability Database
Dell	Latitude Rugged 5414 Firmware	< 1.30.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude Rugged 5420 Firmware	< 1.14.1	Vulnerable	NIST National Vulnerability Database
Dell	Latitude Rugged 5424 Firmware	< 1.14.1	Vulnerable	NIST National Vulnerability Database
Dell	Latitude Rugged 7220 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude Rugged 7220ex Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude Rugged 7424 Firmware	< 1.14.1	Vulnerable	NIST National Vulnerability Database
Dell	Latitude Rugged Extreme 7214 Firmware	< 1.30.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude Rugged Extreme 7414 Firmware	< 1.30.0	Vulnerable	NIST National Vulnerability Database
Dell	Latitude Rugged Tablet 7212 Firmware	< 1.34.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 3040 Firmware	< 1.16.1	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 3046 Firmware	< 1.13.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 3050 Firmware	< 1.17.0< 1.18.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 3060 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 3070 Firmware	< 1.9.1	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 3080 Firmware	< 2.2.1	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 3240 Firmware	< 1.13.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 3280 Firmware	< 1.8.1	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 5040 Firmware	< 1.19.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 5050 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 5060 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 5070 Firmware	< 1.9.1	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 5080 Firmware	< 1.5.1	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 5250 Firmware	< 1.18.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 5260 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 5270 Firmware	< 1.10.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 5480 Firmware	< 1.8.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7040 Firmware	< 1.20.2	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7050 Firmware	< 1.17.1	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7060 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7070 Firmware	< 1.9.1< 1.9.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7071 Firmware	< 1.9.1	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7080 Firmware	< 1.5.1	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7440 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7450 Firmware	< 1.18.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7460 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7470 Firmware	< 1.10.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7480 Firmware	< 1.8.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7760 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7770 Firmware	< 1.10.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex 7780 Firmware	< 1.8.0	Vulnerable	NIST National Vulnerability Database
Dell	Optiplex Xe3 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3240 Firmware	< 1.7.1	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3420 Firmware	< 2.18.1	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3430 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3431 Firmware	< 1.9.1	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3440 Firmware	< 1.5.1	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3510 Firmware	< 1.27.3	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3520 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3530 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3540 Firmware	< 1.12.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3541 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3550 Firmware	< 1.7.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3620 Firmware	< 2.18.1	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3630 Firmware	< 2.10.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3640 Firmware	< 1.8.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 3930 Firmware	< 2.12.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 5510 Firmware	< 1.18.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 5520 Firmware	< 1.24.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 5530 Firmware	< 1.21.0< 1.15.8	Vulnerable	NIST National Vulnerability Database
Dell	Precision 5540 Firmware	< 1.13.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 5720 Firmware	< 2.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 5820 Firmware	< 2.10.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7510 Firmware	< 1.23.3	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7520 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7530 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7540 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7550 Firmware	< 1.9.1	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7710 Firmware	< 1.23.3	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7720 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7730 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7740 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7750 Firmware	< 1.9.1	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7820 Firmware	< 2.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Precision 7920 Firmware	< 2.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 14 3468 Firmware	< 3.9.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 14 3478 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 14 5468 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 15 3568 Firmware	< 3.9.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 15 3578 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 15 5568 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 15 7570 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 15 7580 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3070 Firmware	< 2.19.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3267 Firmware	< 1.17.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3268 Firmware	< 1.17.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3470 Firmware	< 2.19.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3471 Firmware	< 1.7.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3480 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3481 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3580 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3581 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3583 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3584 Firmware	< 1.14.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3660 Firmware	< 1.17.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3667 Firmware	< 1.17.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3668 Firmware	< 1.17.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3669 Firmware	< 1.17.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3670 Firmware	< 2.19.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3671 Firmware	< 1.7.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3681 Firmware	< 2.5.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3881 Firmware	< 2.5.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 3888 Firmware	< 2.5.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 5090 Firmware	< 1.9.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 5370 Firmware	< 1.19.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 5471 Firmware	< 1.19.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 5481 Firmware	< 2.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 5581 Firmware	< 2.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 5880 Firmware	< 1.5.1	Vulnerable	NIST National Vulnerability Database
Dell	Vostro 7590 Firmware	< 1.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Wyse 5070 Firmware	< 1.12.0	Vulnerable	NIST National Vulnerability Database
Dell	Wyse 5470 Firmware	< 1.9.0	Vulnerable	NIST National Vulnerability Database
Dell	Wyse 7040 Firmware	< 1.12.0	Vulnerable	NIST National Vulnerability Database
Dell	Xps 13 9360 Firmware	< 2.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Xps 13 9370 Firmware	< 1.16.0	Vulnerable	NIST National Vulnerability Database
Dell	Xps 13 9380 Firmware	< 1.15.0	Vulnerable	NIST National Vulnerability Database
Dell	Xps 15 7590 Firmware	< 1.21.0	Vulnerable	NIST National Vulnerability Database
Dell	Xps 15 9560 Firmware	< 1.24.0	Vulnerable	NIST National Vulnerability Database
Dell	Xps 15 9575 Firmware	< 1.17.0	Vulnerable	NIST National Vulnerability Database
Dell	Xps 27 7760 Firmware	< 2.11.0	Vulnerable	NIST National Vulnerability Database
Dell	Xps 7590 Firmware	< 1.13.0	Vulnerable	NIST National Vulnerability Database
Dell	Xps 8930 Firmware	< 1.1.18	Vulnerable	NIST National Vulnerability Database
Dell	Xps 8940 Firmware	< 2.1.3	Vulnerable	NIST National Vulnerability Database

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Local

Attack complexity

Low

Privileges required

High

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
7.5	CVSS 3.1	High	0.8	6.0	security_alert@emc.com via NIST National Vulnerability Database
7.5	CVSS 3.1	High	—	—	dell via CVE Program (cve.org) e CISA ADP
6.7	CVSS 3.1	Medium	0.8	5.9	nvd@nist.gov via NIST National Vulnerability Database
6.7	CVSS 3.1	Medium	—	—	GitHub, Inc. via GitHub Security Advisories
7.2	CVSS 2.0	High	3.9	10.0	nvd@nist.gov via NIST National Vulnerability Database

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov)

Scoring entities (NIST, CNA, ADP) score independently; each score is shown with its origin. For prioritization we use 7.5 (security_alert@emc.com via NIST National Vulnerability Database) as a conservative provisional reference — not a definitive official score.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-20 · Improper Input Validation

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.24%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.

endpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

2026
Affected products added · dell/cpg bios
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 13, 2026
CVSS changed · 6.7
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · → Modified
Oct 13, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 13, 2026 · NIST National Vulnerability Database
2021
CVE published
Nov 12, 2021 · dell

Source activity

Repeated readings are counted rather than listed.

1× References added · Oct 13, 2026 – Oct 13, 2026
1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

3 on the record

www.dell.com/support/kbdoc/en-us/000192967
Vendor Advisory, x_refsource_MISC, NIST National Vulnerability Database
nvd.nist.gov/vuln/detail/CVE-2021-36324
GitHub Security Advisories
github.com/advisories/GHSA-v34w-vx47-xgh3
GitHub Security Advisories

Elsewhere on this site

Dell
every CVE for this vendor

Input validation
same class

CWE-20
other pages naming this weakness

Related CVEs (same products)

Medium CVE-2021-36343 Improper Input Validation in Dell Precision 5820 Tower Firmware Jan 24, 2022
Medium CVE-2021-36342 Improper Input Validation in Dell Precision 7510 Firmware Jan 24, 2022
Medium CVE-2021-36323 Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious... Nov 12, 2021
Medium CVE-2021-36325 Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious... Nov 12, 2021

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2021-36324 is "Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious...", rated Medium. It affects Alienware 13 R3 Firmware (Dell); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.7 describes technical severity. EPSS 0.24% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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