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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.

PUBLISHED Reserved 2026-03-30 | Published 2026-03-30 | Updated 2026-04-28 | Assigner redhat




MEDIUM: 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Problem types

Expired Pointer Dereference

Product status

Default status
affected

Default status
unaffected

Default status
affected

Timeline

2026-03-30:Reported to Red Hat.
2026-03-30:Made public.

References

access.redhat.com/security/cve/CVE-2026-5165 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2453015 (RHBZ#2453015) issue-tracking

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

cve.org (CVE-2026-5165)

nvd.nist.gov (CVE-2026-5165)

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