CVE intelligence

CVE-2026-12080

Vulnerability intelligence

Published Jul 20, 2026Sources checked Oct 29, 2026

7.3HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-12080 and is rated High severity with a CVSS score of 7.3. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Sep 27, 2026

Release Notes

CISA KEVNot listedBased on the latest collected catalog

EPSS0.1%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-12080?

A flaw was found in the QEMU Guest Agent (qga). A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links.

This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use (TOCTOU) file-symlink race. Successful exploitation allows the attacker to gain ownership of arbitrary root-owned files or directories, leading to root access.

This vulnerability requires an external management layer (e.g., libvirt) to trigger the affected code path.

Source: NVD