How severe is CVE-2009-1138?

This vulnerability has a severity rating of HIGH with a CVSS score of 10 out of 10.

What type of vulnerability is CVE-2009-1138?

This is classified as CWE-399, which is a common weakness in software security.

CVE-2009-1138 - HIGH Severity | CVSS 10

Vulnerability Description

The LDAP service in Active Directory on Microsoft Windows 2000 SP4 does not properly free memory for LDAP and LDAPS requests, which allows remote attackers to execute arbitrary code via a request that uses hexadecimal encoding, whose associated memory is not released, related to a "DN AttributeValue," aka "Active Directory Invalid Free Vulnerability." NOTE: this issue is probably a memory leak.

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