CVE-2026-5164
Last modified
CVE-2026-5164 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.11% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Virtio-Win | All versions |
| Redhat | Enterprise Linux | 9.0 |
| Redhat | Enterprise Linux | 10.0 |
References
- https://access.redhat.com/security/cve/CVE-2026-5164Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2453014Issue Tracking, Vendor Advisory
- https://github.com/virtio-win/kvm-guest-drivers-windows/pull/1504Issue Tracking, Patch
Timeline
- Published
- Last Modified
- Status
- Analyzed
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