#VU115993 Input validation error in Linux kernel - CVE-2025-39848
Published: September 22, 2025
Vulnerability identifier: #VU115993
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-2025-39848
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 ax25_rcv() function in net/ax25/ax25_in.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/01a2984cb803f2d487b7074f9718db2bf3531f69
- https://git.kernel.org/stable/c/2bd0f67212908243ce88e35bf69fa77155b47b14
- https://git.kernel.org/stable/c/42b46684e2c78ee052d8c2ee8d9c2089233c9094
- https://git.kernel.org/stable/c/5b079be1b9da49ad88fc304c874d4be7085f7883
- https://git.kernel.org/stable/c/7d449b7a6c8ee434d10a483feed7c5c50108cf56
- https://git.kernel.org/stable/c/8156210d36a43e76372312c87eb5ea3dbb405a85
- https://git.kernel.org/stable/c/89064cf534bea4bb28c83fe6bbb26657b19dd5fe
- https://git.kernel.org/stable/c/b1c71d674a308d2fbc83efcf88bfc4217a86aa17