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VulnerabilityPublished Updated

CVE-2026-80665: Linux kernel · KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN

Affects Linux kernelSource GCVE Database

0

Not known to be exploited · CVSS 7.1 High · fixed in 7.0.0-1013.13~24.04.1 : patch Linux kernel soon.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 7.0.0-1013.13~24.04.1, 7.0.0-1017.17~24.04.1, 7.0.0-1016.16~24.04.1 +12
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threatsAffected
  • <7.0.0-34.34
Fixed in
  • 7.0.0-34.34
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threatsAffected
  • <7.0.0-1013.13
Fixed in
  • 7.0.0-1013.13
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threatsAffected
  • <7.0.0-1017.17
Fixed in
  • 7.0.0-1017.17
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threatsAffected
  • <7.0.0-1016.16
Fixed in
  • 7.0.0-1016.16
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threatsAffected
  • <7.0.0-1013.13
Fixed in
  • 7.0.0-1013.13
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threatsAffected
  • <7.0.0-1007.8
Fixed in
  • 7.0.0-1007.8

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

AI-suggested

A patch is available and should be applied by updating to the fixed Linux kernel versions provided by the vendor. The Ubuntu advisory USN-8816-1 confirms that this issue is fixed in the linux-hwe-edge kernel updates. After applying the update, a system reboot is required. Due to ABI changes, third-party kernel modules must be recompiled and reinstalled. Follow the vendor's update instructions carefully to ensure complete remediation.

Description

A vulnerability in the Linux kernel's KVM subsystem for arm64 architecture was resolved. The issue involves improper handling of page frame number (PFN) translation failures in kvm_translate_vncr(), which could lead to incorrect assumptions about abort conditions in kvm_handle_vncr_abort(). This flaw was fixed by preparing an external abort before returning from kvm_translate_vncr() and removing a BUG_ON() in the fault injection path. The vulnerability affects multiple specific Linux kernel versions and has a high severity rating with a CVSS score of 7.1. A patch is available and included in recent Linux kernel updates.

References

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