CVE-2025-38403: Debian Linux

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: Clear the vmci transport packet properly when initializing it In vmci_transport_packet_init memset the vmci_transport_packet before populating the fields to avoid any uninitialised data being left in the structure.

Affected products

• Debian Debian Linux: version 11.0 only
• Linux Linux Kernel: from 3.9, before 5.4.296 (fixed in 5.4.296); from 5.5, before 5.10.240 (fixed in 5.10.240); from 5.11, before 5.15.187 (fixed in 5.15.187); from 5.16, before 6.1.144 (fixed in 6.1.144); from 6.2, before 6.6.97 (fixed in 6.6.97); from 6.7, before 6.12.37 (fixed in 6.12.37); …

Published 2025-07-25. Last modified 2026-06-17.