CVE-2026-5165

medium

Description

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.

References

https://github.com/virtio-win/kvm-guest-drivers-windows/pull/1493

https://bugzilla.redhat.com/show_bug.cgi?id=2453015

https://access.redhat.com/security/cve/CVE-2026-5165

Details

Source: Mitre, NVD

Published: 2026-03-30

Updated: 2026-03-30

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:L/AC:L/Au:M/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 6.7

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Severity: Medium

EPSS

EPSS: 0.00011