CVE-2024-40635: Debian Linux

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

containerd is an open-source container runtime. A bug was found in containerd prior to versions 1.6.38, 1.7.27, and 2.0.4 where containers launched with a User set as a `UID:GID` larger than the maximum 32-bit signed integer can cause an overflow condition where the container ultimately runs as root (UID 0). This could cause unexpected behavior for environments that require containers to run as a non-root user. This bug has been fixed in containerd 1.6.38, 1.7.27, and 2.04. As a workaround, ensure that only trusted images are used and that only trusted users have permissions to import images.

Affected products

• Debian Debian Linux: version 11.0 only
• Linuxfoundation Containerd: before 1.6.38 (fixed in 1.6.38); from 1.7.0, before 1.7.27 (fixed in 1.7.27); from 2.0.0, before 2.0.4 (fixed in 2.0.4)

Published 2025-03-17. Last modified 2026-06-17.