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CVE-2006-5445

21
FAUCET Score

CVE-2006-5445 describes an unspecified vulnerability in the SIP channel driver (channels/chan_sip.c) of Asterisk versions 1.2.x prior to 1.2.13 and 1.4.x prior to 1.4.0-beta3. This flaw allows remote attackers to trigger a denial of service by consuming excessive resources through the creation of "a real pvt structure." With a CVSS score of 7.8, this vulnerability is considered high severity, indicating a network-based attack with low complexity and a complete impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.0_beta1CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.0_beta1:*:*:*:*:*:*:*
1.2.0_beta2CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.0_beta2:*:*:*:*:*:*:*
1.2.6CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.6:*:*:*:*:*:*:*
1.2.7CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.7:*:*:*:*:*:*:*
1.2.8CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.46%
Probability of exploitation in next 30 days
EPSS Percentile
87.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0346 is in the 78th percentile among its peer group of 51,553 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, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ftp.digium.com / pub/asterisk/releases/ChangeLog-1.2.13
Patch
secunia.com / advisories/22651
secunia.com / advisories/22979
exchange.xforce.ibmcloud.com / vulnerabilities/29664
asterisk.org / node/109
Patch
asterisk.org / node/110
Patch
gentoo.org / security/en/glsa/glsa-200610-15.xml
novell.com / linux/security/advisories/2006_69_asterisk.html
osvdb.org / 29973
securityfocus.com / archive/1/449183/100/0/threaded
securityfocus.com / bid/20835
vupen.com / english/advisories/2006/4098