CVE-2022-26353

Name: CVE-2022-26353
Creator: NVD / NIST
Published: 2022-03-16T15:15:16.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.70%

Last modified Jun 17, 2026

CVE-2022-26353 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-3748, which forgot to unmap the cached virtqueue elements on error, leading to memory leakage and other unexpected results. EPSS estimates a 2.70% chance of exploitation in the next 30 days.

Description

A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-3748, which forgot to unmap the cached virtqueue elements on error, leading to memory leakage and other unexpected results. Affected QEMU version: 6.2.0.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

2.70%

84.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Qemu	Qemu	6.2.0
Debian	Debian Linux	11.0

References

https://gitlab.com/qemu-project/qemu/-/commit/abe300d9d894f7138e1af7c8e9c88c04bfe98b37Patch, Third Party Advisory
https://lists.nongnu.org/archive/html/qemu-devel/2022-03/msg02438.htmlMailing List, Patch, Vendor Advisory
https://security.gentoo.org/glsa/202208-27Third Party Advisory
https://security.netapp.com/advisory/ntap-20220425-0003/Third Party Advisory
https://www.debian.org/security/2022/dsa-5133Third Party Advisory
https://gitlab.com/qemu-project/qemu/-/commit/abe300d9d894f7138e1af7c8e9c88c04bfe98b37Patch, Third Party Advisory
https://lists.nongnu.org/archive/html/qemu-devel/2022-03/msg02438.htmlMailing List, Patch, Vendor Advisory
https://security.gentoo.org/glsa/202208-27Third Party Advisory
https://security.netapp.com/advisory/ntap-20220425-0003/Third Party Advisory
https://www.debian.org/security/2022/dsa-5133Third Party Advisory

Timeline

Published: Mar 16, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-26353?

How severe is CVE-2022-26353?

CVE-2022-26353 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.70% probability of exploitation in the next 30 days.

How do I fix CVE-2022-26353?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-26353?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST