How severe is CVE-2013-2685?

CVE-2013-2685 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2013-2685 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-2685?

CVE-2013-2685 primarily affects Asterisk Open Source. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-2685?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-2685 published?

CVE-2013-2685 was published on 2013-04-01 and last updated on 2026-06-16.

CVE-2013-2685

CVE-2013-2685 is a high-severity vulnerability in Asterisk Open Source with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Asterisk Open Source
Published: 2013-04-01
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2013-2685?: CVE-2013-2685 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2013-2685 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-2685?: CVE-2013-2685 primarily affects Asterisk Open Source. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-2685?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-2685 published?: CVE-2013-2685 was published on 2013-04-01 and last updated on 2026-06-16.

References

Affected products (16)

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

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