CVE-2005-0022: University Of Cambridge Exim

Medium severity, CVSS 4.6. EPSS: 0.7% chance of exploitation in the next 30 days.

Buffer overflow in the spa_base64_to_bits function in Exim before 4.43, as originally obtained from Samba code, and as called by the auth_spa_client function, may allow attackers to execute arbitrary code during SPA authentication.

Affected products

• University Of Cambridge Exim: up to and including 4.40; version 4.41 only; version 4.42 only

Published 2005-05-02. Last modified 2026-06-16.