medium6.7
CVE-2026-5164
A flaw was found in virtio-win.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Virtio-Win | All versions |
| Redhat | Enterprise Linux | Versions 9.0, 10.0 |