NULL Pointer Dereference Affecting 389ds/389-ds-base package, versions [,3.3.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published24 Sept 2026
- disclosed7 Sept 2026
- creditUnknown
Introduced: 7 Sep 2026
CVE-2026-18453 (opens in a new tab)How to fix?
Upgrade 389ds/389-ds-base to version 3.3.1 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference in the op_shared_search process when handling paged results with the USE_ONE_BACKEND control. An attacker can cause the server process to crash by sending a crafted sequence of search requests without authentication. This is only exploitable if the attacker has network access to the LDAP service.