CVE-2013-2685

Stack-based buffer overflow in res/res_format_attr_h264.c in Asterisk Open Source 11.x before 11.2.2 allows remote attackers to execute arbitrary code via a long sprop-parameter-sets H.264 media attribute in a SIP Session Description Protocol (SDP) header.

Published: 2013-04-01 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-2685 is rated Moderate Risk (54.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.62%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-2685

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 8.93% 2.62% -6.31%
2 2025-03-30 13.36% 8.93% -4.43%
3 2025-03-29 — 13.36% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-2685

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2013-2685

OS Trackers for CVE-2013-2685

vendor priority summary link
debian unimportant CVE-2013-2685 unimportant priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. https://security-tracker.debian.org/tracker/CVE-2013-2685
gentoo high CVE-2013-2685: 1 GLSA(s) (201401-15), 1 atom(s) (net-misc/asterisk); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-2685
ubuntu medium CVE-2013-2685 medium priority: Ubuntu including 1 source packages (asterisk), 6 status rows across 6 suites (hardy, lucid, oneiric, precise, quantal, upstream): not-affected 5, released 1. https://ubuntu.com/security/CVE-2013-2685

Affected software / configurations for CVE-2013-2685

Vendor Product Version Raw CPE
asterisk open_source 11.0.0 cpe:2.3:a:asterisk:open_source:11.0.0:*:*:*:*:*:*:*
asterisk open_source 11.0.0 cpe:2.3:a:asterisk:open_source:11.0.0:beta1:*:*:*:*:*:*
asterisk open_source 11.0.0 cpe:2.3:a:asterisk:open_source:11.0.0:beta2:*:*:*:*:*:*
asterisk open_source 11.0.0 cpe:2.3:a:asterisk:open_source:11.0.0:rc1:*:*:*:*:*:*
asterisk open_source 11.0.0 cpe:2.3:a:asterisk:open_source:11.0.0:rc2:*:*:*:*:*:*
asterisk open_source 11.0.1 cpe:2.3:a:asterisk:open_source:11.0.1:*:*:*:*:*:*:*
asterisk open_source 11.0.2 cpe:2.3:a:asterisk:open_source:11.0.2:*:*:*:*:*:*:*
asterisk open_source 11.1.0 cpe:2.3:a:asterisk:open_source:11.1.0:*:*:*:*:*:*:*
asterisk open_source 11.1.0 cpe:2.3:a:asterisk:open_source:11.1.0:rc1:*:*:*:*:*:*
asterisk open_source 11.1.0 cpe:2.3:a:asterisk:open_source:11.1.0:rc3:*:*:*:*:*:*
asterisk open_source 11.1.1 cpe:2.3:a:asterisk:open_source:11.1.1:*:*:*:*:*:*:*
asterisk open_source 11.1.2 cpe:2.3:a:asterisk:open_source:11.1.2:*:*:*:*:*:*:*
asterisk open_source 11.2.0 cpe:2.3:a:asterisk:open_source:11.2.0:*:*:*:*:*:*:*
asterisk open_source 11.2.0 cpe:2.3:a:asterisk:open_source:11.2.0:rc1:*:*:*:*:*:*
asterisk open_source 11.2.0 cpe:2.3:a:asterisk:open_source:11.2.0:rc2:*:*:*:*:*:*
asterisk open_source 11.2.1 cpe:2.3:a:asterisk:open_source:11.2.1:*:*:*:*:*:*:*

References for CVE-2013-2685

cvelogic Threat Intelligence