Medium severity6.7NVD Advisory· Published Mar 30, 2026· Updated Jun 17, 2026
CVE-2026-5164
CVE-2026-5164
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).
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Affected products
4- cpe:2.3:a:redhat:virtio-win:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
3- github.com/virtio-win/kvm-guest-drivers-windows/pull/1504nvdIssue TrackingPatch
- access.redhat.com/security/cve/CVE-2026-5164nvdVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingVendor Advisory
News mentions
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