#VU116088 Buffer overflow in Linux kernel - CVE-2025-39889
Published: September 24, 2025 / Updated: October 27, 2025
Vulnerability identifier: #VU116088
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-2025-39889
CWE-ID: CWE-119
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 memory corruption within the l2cap_connect() function in net/bluetooth/l2cap_core.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/24b2cdfc16e9bd6ab3d03b8e01c590755bd3141f
- https://git.kernel.org/stable/c/522e9ed157e3c21b4dd623c79967f72c21e45b78
- https://git.kernel.org/stable/c/9e3114958d87ea88383cbbf38c89e04b8ea1bce5
- https://git.kernel.org/stable/c/c6d527bbd3d3896375079f5dbc8b7f96734a3ba5
- https://git.kernel.org/stable/c/d49798ecd26e0ee7995a7fc1e90ca5cd9b4402d6
- https://git.kernel.org/stable/c/d4ca2fd218caafbf50e3343ba1260c6a23b5676a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.4