CVE-2025-30232 Use after free in Exim
A use-after-free flaw in Exim allows local users with command-line access to escalate privileges.
- 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-2025-30232?
CVE-2025-30232 is a high-severity use after free vulnerability in Exim Exim, published on 27 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A use-after-free in Exim 4.96 through 4.98.1 could allow users (with command-line access) to escalate privileges.
Weakness: CWE-416
Which versions are affected by CVE-2025-30232?
It affects 1 product.
Products include Exim Exim.
How do I fix CVE-2025-30232?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-30232 being exploited?
There is no known exploitation of CVE-2025-30232 in the wild and no public exploit code.
Other vulnerabilities in Exim Exim
Sources
Also known as CLSA-2026-1783707452, DEBIAN-CVE-2025-30232, DSA-5887-1, GHSA-qw8f-786p-mp4v, UBUNTU-CVE-2025-30232, USN-7373-1.