CVE-2014-4047

Certified Asterisk vulnerability

CVSS

5.0

EPSS

4.9%

EPSS pct

91th

Exploited

No known

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.

Affected vendor

Digium

Affected product

Certified Asterisk

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Published

2014-06-17

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 4.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2014-4047

Confirm whether Digium Certified Asterisk is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2014-4047.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2014-4047

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2014-4047 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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