CVE-2009-0049: Eid Eidlib

Medium severity, CVSS 5.0. EPSS: 1.2% chance of exploitation in the next 30 days.

Belgian eID middleware (eidlib) 2.6.0 and earlier does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys, a similar vulnerability to CVE-2008-5077.

Affected products

• Eid Eidlib: up to and including 2.6.0

Published 2009-01-07. Last modified 2026-06-16.