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CVE-2012-3812

17
FAUCET Score

CVE-2012-3812 describes a double free vulnerability in Asterisk Open Source, Certified Asterisk, and Asterisk Digiumphones versions 1.8.x and 10.x. This flaw allows remote authenticated users to trigger a denial of service by establishing multiple voicemail sessions and accessing specific mailboxes. The vulnerability has a CVSS score of 4.0, indicating a medium severity, and requires authentication for exploitation, leading to a daemon crash but no confidentiality or integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.8.0CPE 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:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.8.0:beta4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.20%
Probability of exploitation in next 30 days
EPSS Percentile
86.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0320 is in the 96th percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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-2012-011.html
Vendor Advisory
secunia.com / advisories/50687
secunia.com / advisories/50756
issues.asterisk.org / jira/browse/ASTERISK-20052
debian.org / security/2012/dsa-2550
securityfocus.com / bid/54317