CVE-2026-5164

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).

• CWE-120

• 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

Published

Mar 30, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-51604A stack-based buffer overflow vulnerability in the RTSP serv…7.5
• CVE-2026-51605A stack-based buffer overflow vulnerability in the RTSP serv…7.5
• CVE-2026-51606An improper input handling vulnerability in the RTSP service…7.5
• CVE-2026-5161Improper link resolution before file access ('link following…8.8
• CVE-2026-5162The Royal Addons for Elementor plugin for WordPress is vulne…6.4
• CVE-2026-5163Mattermost versions 11.5.x <= 11.5.1 fail to verify channel …6.5
• CVE-2026-5165A flaw was found in virtio-win, specifically within the Virt…7.8
• CVE-2026-5166Improper Limitation of a Pathname to a Restricted Directory …9.6
• CVE-2026-5167The Masteriyo LMS – Online Course Builder for eLearning, LMS…5.3
• CVE-2026-5169The Inquiry Form to Posts or Pages plugin for WordPress is v…4.4
• CVE-2026-5170A user with access to the cluster with a limited set of priv…5.3
• CVE-2026-5171Improper access control in the entry activity log feature in…4.3