#VU117257 Use-after-free in Linux kernel - CVE-2025-39982
Published: October 15, 2025
Vulnerability identifier: #VU117257
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-2025-39982
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 hci_conn_complete_evt() and le_conn_complete_evt() functions in net/bluetooth/hci_event.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/484c7d571a3d1b3fd298fa691b660438c4548a53
- https://git.kernel.org/stable/c/6243bda271a628c48875e3e473206e7f584892ce
- https://git.kernel.org/stable/c/9e622804d57e2d08f0271200606bd1270f75126f
- https://git.kernel.org/stable/c/a78fd4fc5694ecb3b97deb2ad9eaebd67b4d2b08
- https://git.kernel.org/stable/c/bcce99f613163a43de24674b717e7a6c135fc879