CVE-2014-9374

Certified Asterisk vulnerability

CVSS

5.0

EPSS

9.5%

EPSS pct

95th

Exploited

No known

Double free vulnerability in the WebSocket Server (res_http_websocket module) in Asterisk Open Source 11.x before 11.14.2, 12.x before 12.7.2, and 13.x before 13.0.2 and Certified Asterisk 11.6 before 11.6-cert9 allows remote attackers to cause a denial of service (crash) by sending a zero length frame after a non-zero length frame.

Affected vendor

Digium

Affected product

Certified Asterisk

CVSS vector

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

Published

2014-12-12

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 9.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2014-9374

Confirm whether Digium Certified Asterisk is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2014-9374.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2014-9374

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2014-9374 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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