CVE-2007-4455

Name: CVE-2007-4455
Creator: NVD / NIST
Published: 2007-08-22T01:17:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.77%

Last modified Jun 16, 2026

CVE-2007-4455 is a vulnerability of currently unknown severity. The SIP channel driver (chan_sip) in Asterisk Open Source 1.4.x before 1.4.11, AsteriskNOW before beta7, Asterisk Appliance Developer Kit 0.x before 0.8.0, and s800i (Asterisk Appliance) 1.x before 1.0.3 allows remote attackers to cause a denial of service (memory exhaustion) via a SIP dialog that causes a large number of history entries to be created.. EPSS estimates a 1.77% chance of exploitation in the next 30 days.

Description

The SIP channel driver (chan_sip) in Asterisk Open Source 1.4.x before 1.4.11, AsteriskNOW before beta7, Asterisk Appliance Developer Kit 0.x before 0.8.0, and s800i (Asterisk Appliance) 1.x before 1.0.3 allows remote attackers to cause a denial of service (memory exhaustion) via a SIP dialog that causes a large number of history entries to be created.

Metrics

EPSS Probability

1.77%

75.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Asterisk	Asterisk	<= 1.4.9
Asterisk	Asterisk Appliance Developer Kit	<= 0.7
Asterisk	Asterisknow	<= beta_6

References

Timeline

Published: Aug 22, 2007
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2007-4455?

How severe is CVE-2007-4455?

Severity scoring for CVE-2007-4455 is pending analysis. The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.

How do I fix CVE-2007-4455?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2007-4455?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST