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CVE-2009-2346

Published: Sep 8, 2009Updated: Apr 23, 2026 Sources: CVE List NVDCWE-119
NVD MITRE
7.8CVSSHIGH
EPSS Score
2.6%
Top 16.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The IAX2 protocol implementation in Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.2, 1.6.0.x before 1.6.0.15, and 1.6.1.x before 1.6.1.6; Business Edition B.x.x before B.2.5.10, C.2.x before C.2.4.3, and C.3.x before C.3.1.1; and s800i 1.3.x before 1.3.0.3 allows remote attackers to cause a denial of service (call-number exhaustion) by initiating many IAX2 message exchanges, a related issue to CVE-2008-3263.

CVSS Vector Breakdown

AV:NAC:LAu:NC:NI:NA:C
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:NAuthentication
None
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:CAvailability
Complete
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

asteriskasterisk
On-premWeb App
Communications / voip-telephony
open sourceasterisk
On-premWeb App
Communications / voip-telephony
opensourceasterisk
On-prem
Communications / voip-telephony
asterisksangoma
On-prem
Communications
appliance s800iasterisk
On-prem
Communications / voip-telephony
asteriskoss-projectCommunicationsaka open source, asterisk appliance developer kit
sangomacommercialCACommunicationsaka freepbx, certified asterisk, asterisk
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://downloads.asterisk.org/pub/security/AST-2009-006.html
downloads.asterisk.org
http://secunia.com/advisories/36593
secunia.com
http://securitytracker.com/id?1022819
securitytracker.com
and 2 more references View all →

Timeline

Published
Sep 8, 2009
Last Updated
Apr 23, 2026

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