Is CVE-2013-5642 in the CISA KEV catalog?

No. CVE-2013-5642 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-5642?

CVE-2013-5642 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2013-5642?

CVE-2013-5642 has an EPSS score of 11.65% (95th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2013-5642

MEDIUMEPSS 95th pctl

5.0

CVSS v2

NVD

Description

The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.x before 1.8.23.1, 10.x before 10.12.3, and 11.x before 11.5.1; Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.3-digiumphones allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an invalid SDP that defines a media description before the connection description in a SIP request.

CWE-20Improper Input Validation

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

11.65%probability of exploitation in 30 days

95thpercentile

Very high risk: more likely to be exploited than 95% of all known CVEs.

References

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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.