Is CVE-2013-2264 actively exploited?

No active exploitation of CVE-2013-2264 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2013-2264 be exploited remotely?

Yes. CVE-2013-2264 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2013-2264?

CVE-2013-2264 has a CVSS score of 5.0 (MEDIUM).

HOME VULNERABILITIESCVE-2013-2264

MEDIUM

CVE-2013-2264

CWE-200Published: April 1, 2013· Updated: Jun 16, 2026

5.0

CVSS v3.1

Official Description

The SIP channel driver in Asterisk Open Source 1.8.x before 1.8.20.2, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; Asterisk Business Edition (BE) C.3.x before C.3.8.1; and Asterisk Digiumphones 10.x-digiumphones before 10.12.2-digiumphones exhibits different behavior for invalid INVITE, SUBSCRIBE, and REGISTER transactions depending on whether the user account exists, which allows remote attackers to enumerate account names by (1) reading HTTP status codes, (2) reading additional text in a 403 (aka Forbidden) response, or (3) observing whether certain retransmissions occur.

NVD Source

Technical Analysis

CVE-2013-2264 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.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.