CVE-2022-43705: Botan Project Botan

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

In Botan before 2.19.3, it is possible to forge OCSP responses due to a certificate verification error. This issue was introduced in Botan 1.11.34 (November 2016).

Affected products

• Botan Project Botan: from 1.11.34, before 2.19.3 (fixed in 2.19.3)

Published 2022-11-27. Last modified 2026-06-17.