CVE-2009-1417: GNU Gnutls

Medium severity, CVSS 5.0. EPSS: 1.4% chance of exploitation in the next 30 days.

gnutls-cli in GnuTLS before 2.6.6 does not verify the activation and expiration times of X.509 certificates, which allows remote attackers to successfully present a certificate that is (1) not yet valid or (2) no longer valid, related to lack of time checks in the _gnutls_x509_verify_certificate function in lib/x509/verify.c in libgnutls_x509, as used by (a) Exim, (b) OpenLDAP, and (c) libsoup.

Affected products

• GNU Gnutls: up to and including 2.6.5; version 1.0.16 only; version 1.0.17 only; version 1.0.18 only; version 1.0.19 only; version 1.0.20 only; …

Published 2009-04-30. Last modified 2026-06-16.