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VulnerabilityPublished Updated

CVE-2026-12080: qemu

Affects qemuSource GCVE Database

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Authoritative record:CVE-2026-12080· High 7.3

Not known to be exploited · CVSS 7.3 High.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
7.3High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.17.3
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10qemupkg:deb/ubuntu/qemu?arch=source&distro=stonkingOther threatsAffected
  • 1:10.2.1+ds-1ubuntu3 – 1:11.0.3+ds-2ubuntu2
4 affected builds
Fixed in–
Ubuntu 26.10qemu-hwepkg:deb/ubuntu/qemu-hwe?arch=source&distro=stonkingOther threatsAffected
  • 1:10.2.1+ds-1ubuntu4 – 1:11.0.3+ds-2ubuntu4
5 affected builds
Fixed in–
Ubuntu 26.04 LTSqemupkg:deb/ubuntu/qemu?arch=source&distro=resoluteOther threatsAffected
  • 1:10.1.0+ds-5ubuntu2 – 1:10.2.1+ds-1ubuntu3.3
10 affected builds
Fixed in–
Ubuntu 26.04 LTSqemu-hwepkg:deb/ubuntu/qemu-hwe?arch=source&distro=resoluteOther threatsAffected
  • 1:10.2.1+ds-1ubuntu2 – 1:10.2.1+ds-1ubuntu4.4
5 affected builds
Fixed in–
Ubuntu 24.04 LTSqemupkg:deb/ubuntu/qemu?arch=source&distro=nobleOther threatsAffected
  • 1:8.0.4+dfsg-1ubuntu3 – 1:8.2.2+ds-0ubuntu1.18
24 affected builds
Fixed in–
Ubuntu 22.04 LTSqemupkg:deb/ubuntu/qemu?arch=source&distro=jammyOther threatsAffected
  • 1:6.0+dfsg-2expubuntu1 – 1:6.2+dfsg-2ubuntu6.31
35 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a fix is available, restrict local user access to the guest environment and limit use of external management layers that invoke the guest-ssh-add-authorized-keys command handler.

Description

A vulnerability in the QEMU Guest Agent (qga) allows a local unprivileged user to exploit the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can be done via a deterministic directory-symlink bypass or a TOCTOU file-symlink race, potentially leading to ownership of arbitrary root-owned files or directories and resulting in root access. Exploitation requires an external management layer such as libvirt to trigger the vulnerable code path.

References

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