CVE-2016-2194: Botan Project Botan

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

The ressol function in Botan before 1.10.11 and 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (infinite loop) via unspecified input to the OS2ECP function, related to a composite modulus.

Affected products

• Botan Project Botan: up to and including 1.10.10; version 1.11.0 only; version 1.11.1 only; version 1.11.2 only; version 1.11.3 only; version 1.11.4 only; …
• Debian Debian Linux: version 8.0 only

Published 2016-05-13. Last modified 2026-06-17.