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CVE-2013-2686

15
FAUCET Score

CVE-2013-2686 describes a stack-consumption vulnerability in the HTTP server of Asterisk Open Source, Certified Asterisk, and Asterisk Digiumphones versions. A remote attacker can exploit this by sending a crafted HTTP POST request with an improperly restricted Content-Length value, leading to a denial of service (daemon crash). This vulnerability has a CVSS score of 5.0 (medium severity), indicating a network-based attack with low complexity and a partial impact on availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.8.0CPE matchmatch criteria
cpe:2.3:a:asterisk:open_source:1.8.0:*:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:asterisk:open_source:1.8.0:beta1:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:asterisk:open_source:1.8.0:beta2:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:asterisk:open_source:1.8.0:beta3:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:asterisk:open_source:1.8.0:beta4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0213 is in the 69th percentile among its peer group of 23,701 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

downloads.asterisk.org / pub/security/AST-2013-002.html
Vendor Advisory
issues.asterisk.org / jira/browse/ASTERISK-20967
telussecuritylabs.com / threats/show/TSL20130327-01