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CVE-2026-5165 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:6.7 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://access.redhat.com/security/cve/CVE-2026-5165	[email protected]	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2453015	[email protected]	Issue TrackingVendor Advisory
https://github.com/virtio-win/kvm-guest-drivers-windows/pull/1493	[email protected]	Issue Tracking

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-825	Expired Pointer Dereference	[email protected]

Affected Products

Product	Versions
redhat virtio-win	All versions
CPE cpe:2.3:a:redhat:virtio-win:-:::::::* Remediation No remediation found in references.
redhat enterprise linux	9.0 10.0
CPE cpe:2.3:o:redhat:enterprise_linux:9.0:::::::* cpe:2.3:o:redhat:enterprise_linux:10.0:::::::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 28, 2026	Initial Analysis	[email protected]
Mar 30, 2026	New CVE Received	[email protected]