CVE-2012-1663

CVE-2012-1663 is a high-severity vulnerability in Gnu Gnutls with a CVSS 2.0 base score of 7.5. 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-399.

Key facts

• Severity: High (CVSS 2.0 base score 7.5)
• EPSS exploit prediction: 5% (92nd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-399
• Affected product: Gnu Gnutls
• Published: 2012-03-13
• Last modified: 2026-06-16

Description

Double free vulnerability in libgnutls in GnuTLS before 3.0.14 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted certificate list.

Frequently asked questions

What is CVE-2012-1663?

Double free vulnerability in libgnutls in GnuTLS before 3.0.14 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted certificate list.

How severe is CVE-2012-1663?

CVE-2012-1663 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2012-1663 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-1663?

CVE-2012-1663 primarily affects Gnu Gnutls. In total, 165 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-1663?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2012-1663 published?

CVE-2012-1663 was published on 2012-03-13 and last updated on 2026-06-16.

References

• http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5866
• http://www.exploit-db.com/exploits/24865
• https://exchange.xforce.ibmcloud.com/vulnerabilities/74099

Affected products (165)

• 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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