CVEvulnerability
CVE-2026-5164
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-03-30
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.7 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-120
Description
A flaw was found in virtio-win. The `RhelDoUnMap()` function does not properly validate the number of descriptors provided by a user during an unmap request. A local user could exploit this input validation vulnerability by supplying an excessive number of descriptors, leading to a buffer overrun. This can cause a system crash, resulting in a Denial of Service (DoS).
Affected configurations
• redhat virtio-win
• redhat enterprise linux 9.0
• redhat enterprise linux 10.0
Related
Weakness · CWE (1)
- CWE-120 Buffer Copy without Checking Size of Input weakness
References
- https://access.redhat.com/security/cve/CVE-2026-5164 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2453014 Issue Tracking, Vendor Advisory
- https://github.com/virtio-win/kvm-guest-drivers-windows/pull/1504 Issue Tracking, Patch