Vulnerability in Opencontainers Runc
CVE-2025-52881
runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs files through the use of a rac…
EPSS: 0.000 (3.7th percentile) — read the EPSS interpretation.
Affected products
- Opencontainers Runc — versions <= 1.2.7, < 1.2.8, <= 1.3.2, < 1.3.3, <= 1.4.0-rc.2, < 1.4.0-rc.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/opencontainers/runc/security/advisories/GHSA-cgrx-mc8f-2prm (x_refsource_CONFIRM)
- https://github.com/opencontainers/runc/security/advisories/GHSA-qw9x-cqr3-wc7r (x_refsource_MISC)
- https://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2 (x_refsource_MISC)
- https://github.com/opencontainers/runc/commit/ff94f9991bd32076c871ef0ad8bc1b763458e480 (x_refsource_MISC)
- https://github.com/opencontainers/runc/commit/ff6fe1324663538167eca8b3d3eec61e1bd4fa51 (x_refsource_MISC)
- https://github.com/opencontainers/runc/commit/ed6b1693b8b3ae7eb0250a7e76fc888cdacf98c1 (x_refsource_MISC)
- https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64 (x_refsource_MISC)
- https://github.com/opencontainers/runc/commit/d61fd29d854b416feaaf128bf650325cd2182165 (x_refsource_MISC)
- https://github.com/opencontainers/runc/commit/d40b3439a9614a86e87b81a94c6811ec6fa2d7d2 (x_refsource_MISC)
- https://github.com/opencontainers/runc/commit/b3dd1bc562ed9996d1a0f249e056c16624046d28 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-52881?
- CVE-2025-52881 is a vulnerability in Opencontainers Runc, classified under UNIX Symbolic Link (Symlink) Following. Published 2025-11-06.
- Is CVE-2025-52881 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.