Is CVE-2014-4047 in the CISA KEV catalog?

No. CVE-2014-4047 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-4047?

CVE-2014-4047 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2014-4047?

CVE-2014-4047 has an EPSS score of 4.91% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-4047?

Upgrade asterisk on debian 11 to 1:11.10.2~dfsg-1 or later.

CVE & CISA-KEV Catalog

CVE-2014-4047

MEDIUMEPSS 91th pctl

5.0

CVSS v2

NVD

Description

Asterisk Open Source 1.8.x before 1.8.28.1, 11.x before 11.10.1, and 12.x before 12.3.1 and Certified Asterisk 1.8.15 before 1.8.15-cert6 and 11.6 before 11.6-cert3 allows remote attackers to cause a denial of service (connection consumption) via a large number of (1) inactive or (2) incomplete HTTP connections.

How to fix

Remediation Available

asteriskDebian

Fixed in:1:11.10.2~dfsg-1CVE-2014-4047

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

4.91%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Patch1

downloads.asterisk.org

Other references2

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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.