Use After Free in Exim
CVE-2025-30232
A use-after-free in Exim 4.96 through 4.98.1 could allow users (with command-line access) to escalate privileges.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Exim — versions 4.96
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exim.org/static/doc/security/CVE-2025-30232.txt (Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-30232?
- CVE-2025-30232 is a high-severity vulnerability in Exim, classified under Use After Free. CVSS score: 8.1/10. Published 2025-03-28.
- How severe is CVE-2025-30232?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2025-30232 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.