The res_pjsip_pubsub module in Asterisk Open Source 12.x before 12.5.1 allows remote authenticated users to cause a denial of service (cras…

published 2014-11-26 11y ago modified 2026-06-17 4mo ago also EUVD-2014-6488

cvss: 4.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 3.6%; EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits: 0; none known

The res_pjsip_pubsub module in Asterisk Open Source 12.x before 12.5.1 allows remote authenticated users to cause a denial of service (crash) via crafted headers in a SIP SUBSCRIBE request for an event package.

Patch / fix

links 1

downloads.asterisk.org/pub/security/AST-2014-009.html advisory

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Exploit prediction

3.61% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:N/A:P

Classification

Weakness

CWE-20 Improper Input Validation

References

downloads.asterisk.org /pub/security/AST-2014-009.html
patch, vendor-advisory

Sources

CVE List CVE-2014-6609
NVD CVE-2014-6609

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