CVE-2026-5164
Medium
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).
SeverityMedium
CVSS6.7
Exploit probability—
Product
Redhat Virtio-win
PublishedMar 30, 2026
First seenMar 30, 2026
Weakness typeCWE-120CWE-120
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat virtio-win | No range specified | — |
| redhat enterprise_linux | 9.0, 10.0 | — |
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