CVE-2009-4810: Samhain Labs Samhain

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

The Secure Remote Password (SRP) implementation in Samhain before 2.5.4 does not check for a certain zero value where required by the protocol, which allows remote attackers to bypass authentication via crafted input.

Affected products

• Samhain Labs Samhain: up to and including 2.5.3; version 1.8.9 only; version 1.8.10 only; version 1.8.11 only; version 1.8.12 only; version 2.0.0 only; …

Published 2010-04-23. Last modified 2026-06-16.