CVE-2006-4521

Name: CVE-2006-4521
Creator: NVD / NIST
Published: 2006-11-04T00:07:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.75%

Last modified Jun 16, 2026

CVE-2006-4521 is a vulnerability of currently unknown severity. The BerDecodeLoginDataRequest function in the libnmasldap.so NMAS module in Novell eDirectory 8.8 and 8.8.1 before the Security Services 2.0.3 patch does not properly increment a pointer when handling certain input, which allows remote attackers to cause a denial of service (invalid memory access) via a crafted login request.. EPSS estimates a 1.75% chance of exploitation in the next 30 days.

Description

The BerDecodeLoginDataRequest function in the libnmasldap.so NMAS module in Novell eDirectory 8.8 and 8.8.1 before the Security Services 2.0.3 patch does not properly increment a pointer when handling certain input, which allows remote attackers to cause a denial of service (invalid memory access) via a crafted login request.

Metrics

EPSS Probability

1.75%

75.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Novell	Edirectory	8.8
Novell	Edirectory	8.8.1

References

http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=437Patch, Vendor Advisory
http://secunia.com/advisories/22660Patch, Vendor Advisory
http://securitytracker.com/id?1017140Patch
http://www.securityfocus.com/bid/20842
http://www.vupen.com/english/advisories/2006/4293
https://exchange.xforce.ibmcloud.com/vulnerabilities/29963
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=437Patch, Vendor Advisory
http://secunia.com/advisories/22660Patch, Vendor Advisory
http://securitytracker.com/id?1017140Patch
http://www.securityfocus.com/bid/20842
http://www.vupen.com/english/advisories/2006/4293
https://exchange.xforce.ibmcloud.com/vulnerabilities/29963

Timeline

Published: Nov 4, 2006
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2006-4521?

How severe is CVE-2006-4521?

Severity scoring for CVE-2006-4521 is pending analysis. The EPSS model estimates a 1.75% probability of exploitation in the next 30 days.

How do I fix CVE-2006-4521?

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-2006-4521?

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

Scan your code now

Source: NVD / NIST