Buffer overflow in Red Hat Enterprise Linux 10
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 ex…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (1.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry, Vendor Advisory)
- RHBZ#2453014 (x_refsource_REDHAT, issue-tracking, Issue Tracking, Vendor Advisory)
- secalert@redhat.com (Patch, Issue Tracking)
Frequently asked questions
- What is CVE-2026-5164?
- CVE-2026-5164 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.7/10. Published 2026-03-30.
- How severe is CVE-2026-5164?
- Medium severity. CVSS v3 base score is 6.7 out of 10.