Is CVE-2026-5164 actively exploited?

No active exploitation of CVE-2026-5164 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-5164 be exploited remotely?

No. CVE-2026-5164 requires local access to exploit.

What is the CVSS score of CVE-2026-5164?

CVE-2026-5164 has a CVSS score of 6.7 (MEDIUM).

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MEDIUM

CVE-2026-5164

CWE-120Published: March 30, 2026· Updated: Apr 1, 2026

6.7

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.1th

Official 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).

NVD Source

Technical Analysis

CVE-2026-5164 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.7.