CVE-2026-5165: Red Hat Enterprise Linux

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

A flaw was found in virtio-win, specifically within the VirtIO Block (BLK) device. When the device undergoes a reset, it fails to properly manage memory, resulting in a use-after-free vulnerability. This issue could allow a local attacker to corrupt system memory, potentially leading to system instability or unexpected behavior.

Affected products

• Red Hat Enterprise Linux: version 9.0 only; version 10.0 only
• Red Hat Virtio-Win: affected versions not specified

Published 2026-03-30. Last modified 2026-06-17.