CVE-2026-74341

HIGH
MEDIUM Priority: 0.05 BB Relevance: 63/100
Published: 2026-08-15 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Adjacent Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

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.

Affected Software (9)

VendorProductVersion
Linux Linux 8e84c25821698bdef73c0329fb2022a4673b7adc < 7acc1995bdcfdd82b2dd0dc735b1a4b076ae88a0
Linux Linux 8e84c25821698bdef73c0329fb2022a4673b7adc < b80c4b5268c297b0503f65ef18038327e2119ad1
Linux Linux 8e84c25821698bdef73c0329fb2022a4673b7adc < dae9cadf0925f1cbfb71306d60490890df3870a6
Linux Linux 8e84c25821698bdef73c0329fb2022a4673b7adc < cfc67aee0c83e7f5d43a1dad3e25c789e9cc1d92
Linux Linux 8e84c25821698bdef73c0329fb2022a4673b7adc < 15545ee71301e82d26d9a31b407ed0019eb62a60
Linux Linux 8e84c25821698bdef73c0329fb2022a4673b7adc < 1b5d8a248c3afa640bcc99fa95abcd1e36f3ee18
Linux Linux 8e84c25821698bdef73c0329fb2022a4673b7adc < 18813b90032bfaafb225906a4d2b51be4dfc02c3
Linux Linux 8e84c25821698bdef73c0329fb2022a4673b7adc < 88a240d86d3d64521f9194abe185ac71cc74d0bd
Linux Linux 3.13

Bug Bounty Relevance

63 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.8 / 10.0 v3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.53%
Raw Score 0.005320
Percentile 45.0%
Date 2026-10-31

EPSS Trend

2026-10-31
0.00532
2026-10-30
0.00520
2026-10-29
0.00520

Intelligence Sources

mitre ref →
nvd ref →