VulnerabilityAnalyzed
CVE-2026-5165
When the device undergoes a reset, it fails to properly manage memory, resulting in a use-after-free vulnerability.
HIGH 7.8EPSS 0.11%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.11% probability · 1th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-825
- Affected
- redhat/virtio-win · redhat/enterprise linux
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2026-5165Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2453015Issue Tracking, Vendor Advisory
- https://github.com/virtio-win/kvm-guest-drivers-windows/pull/1493Issue Tracking
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.