# CVE-2026-5165: A flaw was found in virtio-win, specifically within the VirtIO Block (BLK) device. When the device undergoes a reset…

Source: https://junglewise.ai/threats/cve-2026-5165-a-flaw-was-found-in-virtio-win-specifically-within-the-virtio  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-30  
License: CC BY 4.0 with a link back

CVE-2026-5165 · Severity: medium · CVSS 6.7 · Published 2026-03-30

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.

Technologies: [Redhat Enterprise Linux](https://junglewise.ai/threats/technologies/enterprise-linux). Vendors: [Redhat](https://junglewise.ai/threats/vendors/redhat).

## Quick answers

**Is CVE-2026-5165 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-5165 being exploited in the wild.

**How severe is CVE-2026-5165?** Medium severity, with a CVSS score of 6.7, published 30 March 2026.

**Which products and versions are affected?** Redhat Enterprise Linux, Redhat Virtio-Win. The advisory does not name versions.

**Is there a fix for CVE-2026-5165?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-5165?** Check whether you run Redhat Enterprise Linux or Redhat Virtio-Win. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Redhat Enterprise Linux
- Redhat Virtio-Win

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