CVSS 3.1
8.8 highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-74341
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-30)
- Published
- Modified
- Record from
- the NVD, synced
References
- https://git.kernel.org/stable/c/15545ee71301e82d26d9a31b407ed0019eb62a60
- https://git.kernel.org/stable/c/18813b90032bfaafb225906a4d2b51be4dfc02c3
- https://git.kernel.org/stable/c/1b5d8a248c3afa640bcc99fa95abcd1e36f3ee18
- https://git.kernel.org/stable/c/7acc1995bdcfdd82b2dd0dc735b1a4b076ae88a0
- https://git.kernel.org/stable/c/88a240d86d3d64521f9194abe185ac71cc74d0bd