UNIX symbolic link following in runc - CVE-2025-52565
Published: November 5, 2025
Vulnerability identifier: #VU118106
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-52565
CWE-ID: CWE-61
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
runc
runc
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a symlink following issue related to /dev/console mounts. A local user can escape the container using a malicious config and escalate privileges on the system.
How to mitigate CVE-2025-52565
Install updates from vendor's website.