HOMEVULNERABILITIESCVE-2016-2232
MEDIUM

CVE-2016-2232

NVD-CWE-OtherPublished: February 22, 2016· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

Asterisk Open Source 1.8.x, 11.x before 11.21.1, 12.x, and 13.x before 13.7.1 and Certified Asterisk 1.8.28, 11.6 before 11.6-cert12, and 13.1 before 13.1-cert3 allow remote authenticated users to cause a denial of service (uninitialized pointer dereference and crash) via a zero length error correcting redundancy packet for a UDPTL FAX packet that is lost.

NVD Source

Technical Analysis

CVE-2016-2232 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

digium2 product(s)
asteriskcertified asterisk
Source: NVD CPE · 122 total CPE entries

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

ADVISORYhttp://downloads.asterisk.org/pub/security/AST-2016-003.html
ADVISORYhttp://downloads.asterisk.org/pub/security/AST-2016-003.html

All References (6)

→
http://downloads.asterisk.org/pub/security/AST-2016-003.htmlVendor Advisory
→
http://www.debian.org/security/2016/dsa-3700
→
http://www.securitytracker.com/id/1034931
→
http://downloads.asterisk.org/pub/security/AST-2016-003.htmlVendor Advisory
→
http://www.debian.org/security/2016/dsa-3700
→
http://www.securitytracker.com/id/1034931

Quick Facts

CVE IDCVE-2016-2232
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessNVD-CWE-Other
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 22, 2016

Related CVEs (NVD-CWE-Other)

CVE-2000-0841
10.0
CVE-2000-0826
10.0
CVE-2000-0827
10.0
CVE-2000-0840
10.0
CVE-2000-0812
10.0
CVE-2000-0843
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-2232 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.
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