Is CVE-2015-3308 in the CISA KEV catalog?

No. CVE-2015-3308 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-3308?

CVE-2015-3308 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2015-3308?

CVE-2015-3308 has an EPSS score of 3.92% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-3308?

Upgrade gnutls28 on debian 11 to 3.3.8-7 or later.

CVE & CISA-KEV Catalog

CVE-2015-3308

HIGHEPSS 89th pctl

7.5

CVSS v2

NVD

Description

Double free vulnerability in lib/x509/x509_ext.c in GnuTLS before 3.3.14 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted CRL distribution point.

How to fix

Remediation Available

gnutls28Debian

Fixed in:3.3.8-7CVE-2015-3308

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

3.92%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Other references10

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.