CVE-2026-5165

7.8 highEPSS 0.1%

High (7.8) in redhat. EPSS 0.1% 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.

Severity

CVSS 3.1

7.8 high

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

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-31)
CWE: CWE-825
Published: 2026-03-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

redhat:enterprise_linux
redhat:virtio-win

References

https://access.redhat.com/security/cve/CVE-2026-5165
https://bugzilla.redhat.com/show_bug.cgi?id=2453015
https://github.com/virtio-win/kvm-guest-drivers-windows/pull/1493

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