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No exploitation reportedFix available

CVE-2022-26353

No exploitation reported by the sources we read.

  • Published2022-03-16
  • WeaknessCWE-772

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2022-03-1615:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-26353?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-26353?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
11.0= 11.0no fix published
Qemu
BranchAffectedFixed in
6.2= 6.2.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • hivexAlmaLinux:8all versions · fixed in 1.3.18-23.module_el8.6.0+2880+7d9e3703and 6 other packages
  • libguestfsAlmaLinux:8all versions · fixed in 1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaand 24 other packages
  • libguestfs-winsupportAlmaLinux:8all versions · fixed in 8.6-1.module_el8.6.0+2880+7d9e3703
  • libiscsiAlmaLinux:8all versions · fixed in 1.18.0-8.module_el8.6.0+2880+7d9e3703and 2 other packages
  • libnbdAlmaLinux:8all versions · fixed in 1.6.0-5.module_el8.6.0+2880+7d9e3703and 6 other packages
  • libtpmsAlmaLinux:8all versions · fixed in 0.9.1-0.20211126git1ff6fe1f43.module_el8.6.0+2880+7d9e3703and 1 other package
  • libvirtAlmaLinux:8all versions · fixed in 8.0.0-5.2.module_el8.6.0+3071+a07c0ea5and 27 other packages
  • libvirt-dbusAlmaLinux:8all versions · fixed in 1.3.0-2.module_el8.6.0+2880+7d9e3703

11 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.17.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • CNAweakness (CWE)CWE-772read 2026-10-23
  • NVDweakness (CWE)CWE-772read 2026-10-23
  • FIRST EPSSEPSS score2.7 %2026-10-22
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2022-03-16
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2022-26353?

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.

Is CVE-2022-26353 actively exploited?

Active exploitation of CVE-2022-26353 has not been confirmed. Its EPSS score was 2.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-26353?

CVE-2022-26353 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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