CVE-2025-26794: exim SQL Injection

Vulnerability summary

CVE-2025-26794 is a critical (CVSS 9.8) SQL Injection vulnerability in exim. EPSS estimates a 77.49% chance of exploitation in the next 30 days, higher than 99.5% of scored vulnerabilities.

Timeline

1. 21-02-2025
   PublishedVulnerability first disclosed.
2. 18-12-2025
   Last modifiedVulnerability information updated.

Description

Exim 4.98 before 4.98.1, when SQLite hints and ETRN serialization are used, allows remote SQL injection. (Resolving SQL injection requires an update to 4.99.1 in certain non-default rate-limit configurations.)

• CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.