CVE-2025-38676: Debian Linux

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Avoid stack buffer overflow from kernel cmdline While the kernel command line is considered trusted in most environments, avoid writing 1 byte past the end of "acpiid" if the "str" argument is maximum length.

Affected products

• Debian Debian Linux: version 11.0 only
• Linux Linux Kernel: from 5.4.237, before 5.5 (fixed in 5.5); from 5.10.175, before 5.10.241 (fixed in 5.10.241); from 5.15.103, before 5.15.190 (fixed in 5.15.190); from 6.1.16, before 6.1.149 (fixed in 6.1.149); from 6.2.3, before 6.6.103 (fixed in 6.6.103); from 6.7, before 6.12.44 (fixed in 6.12.44); …

Published 2025-08-26. Last modified 2026-06-17.