Answer in brief
CVE-2026-80635 records a High severity (CVSS 8.8) vulnerability in wifi: wcn36xx: fix OOB read from short trigger BA firmware response. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=16be1ac55944412e8d132b1db26f994b368c5742 <04aba50212f9f274e1a726fb3873b5ce8da2d821 || >=16be1ac55944412e8d132b1db26f994b368c5742 <c07aa0534d50361183833e3803204044cf1d0476 || >=16be1ac55944412e8d132b1db26f994b368c5742 <d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35 || >=16be1ac55944412e8d132b1db26f994b368c5742 <af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee || >=16be1ac55944412e8d132b1db26f994b368c5742 <d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2 || >=16be1ac55944412e8d132b1db26f994b368c5742 <b5e6f21923ca89d90256e7346301056f6502691e | 04aba50212f9f274e1a726fb3873b5ce8da2d821, c07aa0534d50361183833e3803204044cf1d0476, d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35, af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee, d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2, b5e6f21923ca89d90256e7346301056f6502691e |
| Linux/Linuxgeneric | 4.7 | Not reported |
Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 28, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: wcn36xx: fix OOB read from short trigger BA firmware response The firmware response length is only checked against sizeof(*rsp) (20 bytes), but when candidate_cnt >= 1, a 22-byte candidate struct is read at buf + 20 without verifying the response contains it. This causes an out-of-bounds read of stale heap data, corrupting the BA session state. Add validation that the response includes the candidate data.
Quoted source text, attributed separately from HOL analysis.