CVE-2025-67896 | THREATINT

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.

PUBLISHED Reserved 2025-12-14 | Published 2025-12-14 | Updated 2025-12-18 | Assigner mitre

HIGH: 7.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L

Problem types

CWE-122 Heap-based Buffer Overflow

Product status

Default status

unknown

4.99 (custom) before 4.99.1

affected

References

www.openwall.com/lists/oss-security/2025/12/14/1

www.openwall.com/lists/oss-security/2025/12/18/3

www.openwall.com/lists/oss-security/2025/12/11/2

exim.org/static/doc/security/

exim.org/...c/security/EXIM-Security-2025-12-09.1/report.txt

cve.org (CVE-2025-67896)

nvd.nist.gov (CVE-2025-67896)

Download JSON