CVE-2022-37451: Exim

High severity, CVSS 7.5. EPSS: 3.3% chance of exploitation in the next 30 days.

Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc.

Affected products

• Exim Exim: before 4.96 (fixed in 4.96)
• Fedoraproject Fedora: version 35 only; version 36 only

Published 2022-08-06. Last modified 2026-06-17.