#VU116876 Input validation error in Linux kernel - CVE-2025-39957
Published: October 9, 2025
Vulnerability identifier: #VU116876
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-39957
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the ieee80211_register_hw() function in net/mac80211/main.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0dbad5f5549e54ac269cc04ce89f212892a98cab
- https://git.kernel.org/stable/c/16c9244a62116fe148f6961753b68e7160799f97
- https://git.kernel.org/stable/c/32adb020b0c32939da1322dcc87fc0ae2bc935d1
- https://git.kernel.org/stable/c/7e2f3213e85eba00acb4cfe6d71647892d63c3a1
- https://git.kernel.org/stable/c/93e063f15e17acb8cd6ac90c8f0802c2624e1a74