CVE-2020-12321 — Improper buffer restriction in some Intel(R) Wireless Bluetooth(R) products before…
Improper buffer restriction in some Intel(R) Wireless Bluetooth(R) products before version 21.110 may allow an unauthenticated user to potentially enable escalation of privilege via adjacent access.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 1% (30-day exploitation probability)+9
- 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.
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.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented patch — www.intel.com (NIST National Vulnerability Database)
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 (Intel Dual Band Wireless-ac 3165 Firmware, Intel Dual Band Wireless-ac 3168 Firmware, Intel Dual Band Wireless-ac 8260 Firmware…).
- Apply the fixed version or the patch documented under Remediation.
- Search available logs for exploit probes, errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Intel | Dual Band Wireless-ac 3165 Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
| Intel | Dual Band Wireless-ac 3168 Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
| Intel | Dual Band Wireless-ac 8260 Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
| Intel | Dual Band Wireless-ac 8265 Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
| Intel | Wi-fi 6 Ax200 Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
| Intel | Wi-fi 6 Ax201 Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
| Intel | Wireless 7265 (rev D) Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
| Intel | Wireless-ac 9260 Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
| Intel | Wireless-ac 9461 Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
| Intel | Wireless-ac 9462 Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
| Intel | Wireless-ac 9560 Firmware | < 21.110 | Vulnerable | NIST National Vulnerability Database |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
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 |
|---|---|---|---|---|---|
| 8.8 | CVSS 3.1 | High | 2.8 | 5.9 | nvd@nist.gov via NIST National Vulnerability Database |
| 5.8 | CVSS 2.0 | Medium | 6.5 | 6.4 | nvd@nist.gov via NIST National Vulnerability Database |
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov) EPSS over time FIRST
Oct 13, 2026 → Oct 16, 2026 · 4 reading(s) · max 0.98%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Not enough vector or weakness data: use the affected application’s logs as a starting point.
Timeline
What happened to this CVE, newest first.
- 2026
- SSVC assessment updated
- Record published
- Fix documented
- CVSS changed · 8.8
- Source status changed · → Modified
- Record created in this database
- 2020
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 13, 2026 – Oct 13, 2026
References
1 on the record
Elsewhere on this site
Related CVEs (same products)
- Medium CVE-2020-26140 Use of a Broken or Risky Cryptographic Algorithm in Alfa Awus036h Firmware May 11, 2021
- Low CVE-2020-24588 The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired... May 11, 2021
- Medium CVE-2020-12322 Improper Input Validation in Intel Dual Band Wireless-ac 3168 Firmware Nov 12, 2020
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 CWE classification.
- 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-2020-12321 is "Improper buffer restriction in some Intel(R) Wireless Bluetooth(R) products before…", rated High. It affects Dual Band Wireless-ac 3165 Firmware (Intel); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 8.8 describes technical severity. EPSS 0.98% 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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