CVE-2025-67896
CRITICAL9.8EPSS 0.07%Published: 12/14/2025Modified: 4/28/2026
Description
Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation.
Affected packages (1)
- Debian/exim4from 0, < 4.99-7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |