CVE-2008-5558

Name: CVE-2008-5558
Creator: NVD / NIST
Published: 2008-12-17T17:30:00.407+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.96%

Last modified Jun 16, 2026

CVE-2008-5558 is a vulnerability of currently unknown severity. Asterisk Open Source 1.2.26 through 1.2.30.3 and Business Edition B.2.3.5 through B.2.5.5, when realtime IAX2 users are enabled, allows remote attackers to cause a denial of service (crash) via authentication attempts involving (1) an unknown user or (2) a user using hostname matching.. EPSS estimates a 1.96% chance of exploitation in the next 30 days.

Description

Asterisk Open Source 1.2.26 through 1.2.30.3 and Business Edition B.2.3.5 through B.2.5.5, when realtime IAX2 users are enabled, allows remote attackers to cause a denial of service (crash) via authentication attempts involving (1) an unknown user or (2) a user using hostname matching.

Metrics

EPSS Probability

1.96%

77.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Asterisk	Asterisk Business Edition	b.2.3.4
Asterisk	Asterisk Business Edition	b.2.3.5
Asterisk	Asterisk Business Edition	b.2.5.0
Asterisk	Asterisk Business Edition	b.2.5.1
Asterisk	Asterisk Business Edition	b.2.5.3
Asterisk	Open Source	1.2.26
Asterisk	Open Source	1.2.26.1
Asterisk	Open Source	1.2.26.2
Asterisk	Open Source	1.2.27
Asterisk	Open Source	1.2.28
Asterisk	Open Source	1.2.29
Asterisk	Open Source	1.2.30
Asterisk	Open Source	1.2.30.2
Asterisk	Open Source	1.2.30.3

References

Timeline

Published: Dec 17, 2008
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2008-5558?

How severe is CVE-2008-5558?

Severity scoring for CVE-2008-5558 is pending analysis. The EPSS model estimates a 1.96% probability of exploitation in the next 30 days.

How do I fix CVE-2008-5558?

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-2008-5558?

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

Scan your code now

Source: NVD / NIST