High Injection

CVE-2026-9254 — Command Injection Vulnerability in Parent Control of Multiple TP-Link Archer Devices

An unauthenticated OS command injection vulnerability exists in the parental control functionality of Archer BE800 V1, BE3600 V1, and AX75 V1 due to improper filtering and neutralization of special characters in certain parameters. A LAN-based attacker can inject arbitrary commands and execute them with root privileges. Successful exploitation may result in complete device compromise and impact the confidentiality, integrity, and availability of the affected device and network traffic.

Published Aug 24, 2026 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: TPLink

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 3.1% (30-day exploitation probability)+13
Technical severity (high)+6

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

3.06%

ahead of 87% of scored CVEs · Oct 14, 2026

Affects

TP-Link Systems Inc.

Archer AX75 V1 and 2 more

CVSS base

8.7

High · 2 source(s)

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 (TP-Link Systems Inc. Archer AX75 V1, TP-Link Systems Inc. Archer BE3600 v1, TP-Link Systems Inc. Archer BE800 v1).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (injection), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
TP-Link Systems Inc.	Archer AX75 V1	< 1.1.6 Build 260716	Vulnerable	CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc.	Archer BE3600 v1	< 1.2.6 Build 20260617	Vulnerable	CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc.	Archer BE800 v1	< 1.4.2 Build 260708	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

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

Attack vector

Adjacent

Attack complexity

Low

Attack requirements

None

Privileges required

None

User interaction

None

Scope

Confidentiality (vulnerable system)

High

Integrity (vulnerable system)

High

Availability (vulnerable system)

High

Confidentiality (subsequent)

Low

Integrity (subsequent)

Low

Availability (subsequent)

Low

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
8.7	CVSS 4.0	High	—	—	f23511db-6c3e-4e32-a477-6aa17d310630 via NIST National Vulnerability Database
8.7	CVSS 4.0	High	—	—	TPLink via CVE Program (cve.org) e CISA ADP

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

(score shown at the top: f23511db-6c3e-4e32-a477-6aa17d310630)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-78 · OS Command Injection

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 3.06%

Detection

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

Look for parameters with command/query metacharacters and unexpected child processes of the service.

application logsendpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

2026
Affected products added · tp-link systems inc./archer be800 v1, tp-link systems inc./archer be3600 v1, tp-link systems inc./archer ax75 v1
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 · 8.7
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · → Awaiting Analysis
Oct 13, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 13, 2026 · NIST National Vulnerability Database
CVE published
Aug 24, 2026 · TPLink

Source activity

Repeated readings are counted rather than listed.

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

References

8 on the record

www.tp-link.com/en/support/download/archer-ax75/v1/
patch, NIST National Vulnerability Database
www.tp-link.com/us/support/download/archer-ax75/v1/
patch, NIST National Vulnerability Database
www.tp-link.com/kr/support/download/archer-be3600/v1/
patch, NIST National Vulnerability Database
www.tp-link.com/us/support/download/archer-be3600/v1/
patch, NIST National Vulnerability Database
www.tp-link.com/en/support/download/archer-be800/v1/
patch, NIST National Vulnerability Database
www.tp-link.com/en/support/download/archer-be3600/v1/
patch, NIST National Vulnerability Database
www.tp-link.com/us/support/download/archer-be800/v1/
patch, NIST National Vulnerability Database
www.tp-link.com/us/support/faq/5264/
vendor-advisory, NIST National Vulnerability Database

Elsewhere on this site

TP-Link Systems Inc.
every CVE for this vendor

Injection
same class

CWE-78
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-78541 Command Injection in Parent Control of TP-Link Archer BE3600 v1 Aug 24, 2026
High CVE-2026-16348 Command Injection Vulnerability in VPN connection of Archer BE800 Aug 24, 2026
High CVE-2026-22223 Command Injection Vulnerability on TP-Link Archer BE230 v1.2 and BE3600 v1 Feb 2, 2026
High CVE-2026-22221 Command Injection Vulnerability on TP-Link Archer BE230 v1.2 and BE3600 v1 Feb 2, 2026
High CVE-2026-0631 Authenticated Command Injection Vulnerability in Surfshark VPN Login in Archer BE230, BE3600 and AXE75 Feb 2, 2026

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-2026-9254 is "Command Injection Vulnerability in Parent Control of Multiple TP-Link Archer Devices", rated High. It affects Archer AX75 V1 (TP-Link Systems Inc.); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 8.7 describes technical severity. EPSS 3.06% 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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