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CVE-2012-5976

20
FAUCET Score

CVE-2012-5976 describes multiple stack consumption vulnerabilities in various versions of Asterisk Open Source, Certified Asterisk, and Asterisk Digiumphones. These flaws allow unauthenticated remote attackers to trigger a denial of service by sending specially crafted TCP data via SIP, HTTP, or XMPP protocols, causing the daemon to crash. The vulnerability has a CVSS score of 5.0 (medium severity) due to its network attack vector, low attack complexity, and potential for partial availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.8.19.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.8.0:*:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.8.0:beta1:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.8.0:beta2:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.8.0:beta3:*:*:*:*:*:*

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
3.03%
Probability of exploitation in next 30 days
EPSS Percentile
86.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0303 is in the 80th percentile among its peer group of 23,684 CVEs.

Social Chatter

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-2012-014
Vendor Advisory
debian.org / security/2013/dsa-2605