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CVE-2009-4055

18
FAUCET Score

CVE-2009-4055 describes a denial-of-service vulnerability in Asterisk Open Source, Business Edition, and s800i products. Remote attackers can crash the daemon by sending an RTP comfort noise payload with an excessively long data length. This vulnerability has a CVSS score of 5.0, indicating a medium severity, and allows an unauthenticated attacker to cause a partial denial of service with low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.0:*:*:*:*:*:*:*
1.2.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.0:beta1:*:*:*:*:*:*
1.2.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.0:beta2:*:*:*:*:*:*
1.2.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.0:rc1:*:*:*:*:*:*
1.2.0CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.0:rc2:*:*:*:*:*:*

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
2.83%
Probability of exploitation in next 30 days
EPSS Percentile
85.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0283 is in the 79th percentile among its peer group of 23,725 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-2009-010-1.2.diff.txt
Exploit
downloads.asterisk.org / pub/security/AST-2009-010-1.4.diff.txt
Exploit
downloads.asterisk.org / pub/security/AST-2009-010-1.6.0.diff.txt
Exploit
downloads.asterisk.org / pub/security/AST-2009-010-1.6.1.diff.txt
Exploit
downloads.digium.com / pub/security/AST-2009-010.html
Vendor Advisory
secunia.com / advisories/37530
ExploitVendor Advisory
secunia.com / advisories/37677
secunia.com / advisories/37708
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/54471
issues.asterisk.org / view.php
debian.org / security/2009/dsa-1952
osvdb.org / 60569
redhat.com / archives/fedora-package-announce/2009-December/msg00759.html
securityfocus.com / archive/1/508147/100/0/threaded
securityfocus.com / bid/37153
vupen.com / english/advisories/2009/3368
Vendor Advisory