Is CVE-2013-6449 in the CISA KEV catalog?

No. CVE-2013-6449 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-6449?

CVE-2013-6449 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2013-6449?

CVE-2013-6449 has an EPSS score of 21.17% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2013-6449

MEDIUMEPSS 97th pctl

4.3

CVSS v2

NVD

Description

The ssl_get_algorithm2 function in ssl/s3_lib.c in OpenSSL before 1.0.2 obtains a certain version number from an incorrect data structure, which allows remote attackers to cause a denial of service (daemon crash) via crafted traffic from a TLS 1.2 client.

CWE-310

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

21.17%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=ca989269a2876bae79393bd54c3e72d49975fc75
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124833.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124854.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124858.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00006.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00009.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00012.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00031.html
http://rhn.redhat.com/errata/RHSA-2014-0015.html
http://rhn.redhat.com/errata/RHSA-2014-0041.html
http://rt.openssl.org/Ticket/Display.html?id=3200&user=guest&pass=guest
http://seclists.org/fulldisclosure/2014/Dec/23
http://security.gentoo.org/glsa/glsa-201412-39.xml
http://www-01.ibm.com/support/docview.wss?uid=isg400001841
http://www-01.ibm.com/support/docview.wss?uid=isg400001843
http://www.debian.org/security/2014/dsa-2833
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
http://www.securityfocus.com/archive/1/534161/100/0/threaded
http://www.securityfocus.com/bid/64530
http://www.securitytracker.com/id/1029548
http://www.ubuntu.com/usn/USN-2079-1
http://www.vmware.com/security/advisories/VMSA-2014-0012.html
https://bugzilla.redhat.com/show_bug.cgi?id=1045363
https://issues.apache.org/jira/browse/TS-2355

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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 2026-04-29.