LOW
CVE-2012-2947
CWE-284Published: June 2, 2012· Updated: Jun 16, 2026
2.6
CVSS v3.1
Official Description
chan_iax2.c in the IAX2 channel driver in Certified Asterisk 1.8.11-cert before 1.8.11-cert2 and Asterisk Open Source 1.8.x before 1.8.12.1 and 10.x before 10.4.1, when a certain mohinterpret setting is enabled, allows remote attackers to cause a denial of service (daemon crash) by placing a call on hold.
Technical Analysis
CVE-2012-2947 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityNone
AvailabilityP
AV:N/AC:H/Au:N/C:N/I:N/A:P
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (10)
→
http://downloads.asterisk.org/pub/security/AST-2012-007.htmlVendor Advisory
→
http://secunia.com/advisories/49303Not Applicable
→
http://www.debian.org/security/2012/dsa-2493Third Party Advisory
→
http://www.securitytracker.com/id?1027102Third Party Advisory · VDB Entry
→
http://downloads.asterisk.org/pub/security/AST-2012-007.htmlVendor Advisory
→
http://secunia.com/advisories/49303Not Applicable
→
http://www.debian.org/security/2012/dsa-2493Third Party Advisory
→
http://www.securitytracker.com/id?1027102Third Party Advisory · VDB Entry
Quick Facts
CVE IDCVE-2012-2947
CVSS Score2.6 / 10
SeverityLOW
WeaknessCWE-284
CISA KEVNo
Affected2 vendor(s)
PublishedJun 2, 2012
Related CVEs (CWE-284)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2012-2947 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.