CVE-2025-53391 Privilege escalation in zulucrypt
Local attackers can escalate privileges to root due to insecure PolicyKit settings in zuluCrypt.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-53391?
CVE-2025-53391 is a critical vulnerability in Debian zulucrypt, published on 28 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Debian zuluPolkit/CMakeLists.txt file for zuluCrypt through the zulucrypt_6.2.0-1 package has insecure PolicyKit allow_any/allow_inactive/allow_active settings that allow a local user to escalate their privileges to root.
Weakness: CWE-863
Which versions are affected by CVE-2025-53391?
How do I fix CVE-2025-53391?
Apply the vendor's patch.
Is CVE-2025-53391 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53391 exists.
Sources
Also known as DEBIAN-CVE-2025-53391, GHSA-33qm-768m-wx8p, UBUNTU-CVE-2025-53391, USN-8218-1.