Is CVE-2013-4353 in the CISA KEV catalog?

No. CVE-2013-4353 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-4353?

CVE-2013-4353 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2013-4353?

CVE-2013-4353 has an EPSS score of 11.85% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2013-4353

MEDIUMEPSS 96th pctl

4.3

CVSS v2

NVD

Description

The ssl3_take_mac function in ssl/s3_both.c in OpenSSL 1.0.1 before 1.0.1f allows remote TLS servers to cause a denial of service (NULL pointer dereference and application crash) via a crafted Next Protocol Negotiation record in a TLS handshake.

CWE-20Improper Input Validation

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

11.85%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

http://git.openssl.org/gitweb/?p=openssl.git%3Ba=blob_plain%3Bf=CHANGES%3Bhb=refs/heads/OpenSSL_1_0_1-stable
http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=197e0ea817ad64820789d86711d55ff50d71f631
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/msg00065.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00067.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00070.html
http://rhn.redhat.com/errata/RHSA-2014-0015.html
http://rhn.redhat.com/errata/RHSA-2014-0041.html
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-2837
http://www.openssl.org/news/vulnerabilities.html
http://www.splunk.com/view/SP-CAAAMB3
http://www.ubuntu.com/usn/USN-2079-1
https://bugzilla.redhat.com/show_bug.cgi?id=1049058

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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.