CVE-2025-67896

Published Dec 14, 2025

Last updated 3 months ago

Overview

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.
Source
cve@mitre.org
NVD status
Analyzed
Products
exim

Risk scores

CVSS 3.1

Type
Primary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

Weaknesses

cve@mitre.org
CWE-122

Social media

Hype score
Not currently trending

Configurations