Vulnerability in Red Hat Enterprise Linux 10
CVE-2026-5165
A flaw was found in virtio-win, specifically within the VirtIO Block (BLK) device. When the device undergoes a reset, it fails to properly manage memory, resulting in a use-after-free vulnerability. This issue could allow a local attacker to corrupt system memory, potentially leading to system instability or unexpected behavior.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (4.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-5165 (vdb-entry, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Issue Tracking, Vendor Advisory)
- github.com/virtio-win/kvm-guest-drivers-windows/pull/1493 (Issue Tracking)
Frequently asked questions
- What is CVE-2026-5165?
- CVE-2026-5165 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under CWE-825. CVSS score: 6.7/10. Published 2026-03-30.
- How severe is CVE-2026-5165?
- Medium severity. CVSS v3 base score is 6.7 out of 10.