#VU119308 Use-after-free in Linux kernel - CVE-2025-40297
Published: December 8, 2025
Vulnerability identifier: #VU119308
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-40297
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the net/bridge/br_private.h. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/3b60ce334c1ce8b3fad7e02dcd5ed9f6646477c8
- https://git.kernel.org/stable/c/8dca36978aa80bab9d4da130c211db75c9e00048
- https://git.kernel.org/stable/c/991fbe1680cd41a5f97c92cd3a3496315df36e4b
- https://git.kernel.org/stable/c/bf3843183bc3158e5821b46f330c438ae9bd6ddb
- https://git.kernel.org/stable/c/e19085b2a86addccff33ab8536fc67ebd9d52198