How severe is CVE-2009-1417?

CVE-2009-1417 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-1417 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1417?

CVE-2009-1417 primarily affects Gnu Gnutls. In total, 117 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1417?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-1417 published?

CVE-2009-1417 was published on 2009-04-30 and last updated on 2026-06-16.

CVE-2009-1417

CVE-2009-1417 is a medium-severity vulnerability in Gnu Gnutls with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Gnu Gnutls
Published: 2009-04-30
Last modified: 2026-06-16

Description

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certificates, which allows remote attackers to successfully present a certificate that is (1) not yet valid or (2) no longer valid, related to lack of time checks in the _gnutls_x509_verify_certificate function in lib/x509/verify.c in libgnutls_x509, as used by (a) Exim, (b) OpenLDAP, and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.

Frequently asked questions

What is CVE-2009-1417?: 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certificates, which allows remote attackers to successfully present a certificate that is (1) not yet valid or (2) no longer valid, related to lack of time checks in the _gnutls_x509_verify_certificate function in lib/x509/verify.c in libgnutls_x509, as used by (a) Exim, (b) OpenLDAP, and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.
How severe is CVE-2009-1417?: CVE-2009-1417 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-1417 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1417?: CVE-2009-1417 primarily affects Gnu Gnutls. In total, 117 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1417?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-1417 published?: CVE-2009-1417 was published on 2009-04-30 and last updated on 2026-06-16.

References

Affected products (117)

cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.0.16:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.0.17:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.0.18:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.0.19:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.0.20:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.0.21:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.0.22:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.0.23:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.0.24:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.0.25:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.13:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.14:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.15:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.16:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.17:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.18:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.19:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.20:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.21:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.22:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.1.23:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.6:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.7:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.8:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.8.1a1:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.9:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.10:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.2.11:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.3.4:*:*:*:*:*:*:*

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