Local root escalation via symlink-following chown
Published Jul 20, 2026 · Updated Jul 20, 2026
Privilege escalation in QEMU Guest Agent on affected Red Hat platforms allows local users to gain root through symbolic links. In qga/commands-posix-ssh.c, a symlink-following directory test and plain chown operate as root on attacker-controlled .ssh paths. A host or management layer must invoke guest-ssh-add-authorized-keys for the attacker's existing account; ownership transfer of a root-owned target enables root access.
Summary
What happened
Privilege escalation in QEMU Guest Agent on affected Red Hat platforms allows local users to gain root through symbolic links. In qga/commands-posix-ssh.c, a symlink-following directory test and plain chown operate as root on attacker-controlled .ssh paths. A host or management layer must invoke guest-ssh-add-authorized-keys for the attacker's existing account; ownership transfer of a root-owned target enables root access.
The record
- CVE
- CVE-2026-12080
- Published
- Jul 20, 2026
- Updated
- Jul 20, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat Enterprise Linux 10
- Classifications
- CWE-61, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 20, 2026CVE publishedPublication date reported by the CVE source.
- Jul 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- QEMU issue 3929 reproduction procedurefunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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