CVE-2025-37998: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fix unsafe attribute parsing in output_userspace() This patch replaces the manual Netlink attribute iteration in output_userspace() with nla_for_each_nested(), which ensures that only well-formed attributes are processed.

Affected products

• Debian Debian Linux: version 11.0 only
• Linux Linux Kernel: from 3.3, before 5.4.294 (fixed in 5.4.294); from 5.5, before 5.10.238 (fixed in 5.10.238); from 5.11, before 5.15.183 (fixed in 5.15.183); from 5.16, before 6.1.139 (fixed in 6.1.139); from 6.2, before 6.6.91 (fixed in 6.6.91); from 6.7, before 6.12.29 (fixed in 6.12.29); …

Published 2025-05-29. Last modified 2026-07-30.