CVE-2026-74341

EUVD-2026-59488
In the Linux kernel, the following vulnerability has been resolved:

wifi: wcn36xx: fix heap overflow from oversized firmware HAL response

The firmware response dispatcher copies all synchronous HAL responses
into the 4096-byte hal_buf without validating the response length. A
response exceeding WCN36XX_HAL_BUF_SIZE causes a heap buffer overflow
with firmware-controlled content.

Add a bounds check on the response length.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 8.98%
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Debian Releases
Debian Product
Codename
linux
bookworm
vulnerable
bookworm (security)
6.1.180-1
fixed
bullseye
vulnerable
bullseye (security)
vulnerable
forky
7.1.7-1
fixed
sid
7.1.8-1
fixed
trixie
vulnerable
trixie (security)
6.12.101-1
fixed