CVE-2017-2801: Botan Project Botan

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

A programming error exists in a way Randombit Botan cryptographic library version 2.0.1 implements x500 string comparisons which could lead to certificate verification issues and abuse. A specially crafted X509 certificate would need to be delivered to the client or server application in order to trigger this vulnerability.

Affected products

Published 2017-05-24. Last modified 2026-06-17.