CVEvulnerability
CVE-2025-67896
9.8 CRITICAL
Official page ↗
- Status
- Analyzed
- Published
- 2025-12-14
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.0 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-122
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 configurations
• exim exim (< 4.99.1)
Related
Weakness · CWE (1)
- CWE-122 Heap-based Buffer Overflow weakness
References
- https://exim.org/static/doc/security/ Vendor Advisory
- https://exim.org/static/doc/security/EXIM-Security-2025-12-09.1/report.txt Vendor Advisory
- https://www.openwall.com/lists/oss-security/2025/12/11/2 Mailing List
- http://www.openwall.com/lists/oss-security/2025/12/14/1 Mailing List
- http://www.openwall.com/lists/oss-security/2025/12/18/3 Mailing List