CVE-2008-4543

Name: CVE-2008-4543
Creator: NVD / NIST
Published: 2008-10-13T20:00:02.37+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.83%

Last modified Jun 16, 2026

CVE-2008-4543 is a vulnerability of currently unknown severity. Cisco Unity 4.x before 4.2(1)ES161, 5.x before 5.0(1)ES53, and 7.x before 7.0(2)ES8, when using anonymous authentication (aka native Unity authentication), allows remote attackers to cause a denial of service (session exhaustion) via a large number of connections.. EPSS estimates a 1.83% chance of exploitation in the next 30 days.

Description

Cisco Unity 4.x before 4.2(1)ES161, 5.x before 5.0(1)ES53, and 7.x before 7.0(2)ES8, when using anonymous authentication (aka native Unity authentication), allows remote attackers to cause a denial of service (session exhaustion) via a large number of connections.

Metrics

EPSS Probability

1.83%

76.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Unity	<= 4.2\(1\)
Cisco	Unity	<= 5.0\(1\)
Cisco	Unity	<= 7.0\(2\)
Cisco	Unity	4.0
Cisco	Unity	4.0\(1\)
Cisco	Unity	4.0\(2\)
Cisco	Unity	4.0\(3\)
Cisco	Unity	4.0\(4\)
Cisco	Unity	4.0\(5\)
Cisco	Unity	4.1\(1\)
Cisco	Unity	5.0
Cisco	Unity	7.0

References

Timeline

Published: Oct 13, 2008
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2008-4543?

How severe is CVE-2008-4543?

Severity scoring for CVE-2008-4543 is pending analysis. The EPSS model estimates a 1.83% probability of exploitation in the next 30 days.

How do I fix CVE-2008-4543?

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-2008-4543?

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

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Source: NVD / NIST