---
id: CVE-2025-2487
title: A flaw was found in the 389-ds-base LDAP Server
summary: >-
  A flaw was found in the 389-ds-base LDAP Server. This issue occurs when
  issuing a Modify DN LDAP operation through the ldap protocol, when the
  function return value is not tested and a NULL pointer is dereferenced. If a
  privileged user p…
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-476
published: '2025-03-18'
updated: '2026-06-26'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-2487'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2025:3663'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:3670'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:4491'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:7395'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2025-2487'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2353071'
    label: secalert@redhat.com
  - url: >-
      https://github.com/389ds/389-ds-base/security/advisories/GHSA-426r-w669-66gw
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00587
epssPercentile: 0.46779
ingestedAt: '2026-06-26T16:43:13.532Z'
---

## Overview

A flaw was found in the 389-ds-base LDAP Server. This issue occurs when issuing a Modify DN LDAP operation through the ldap protocol, when the function return value is not tested and a NULL pointer is dereferenced. If a privileged user performs a ldap MODDN operation after a failed operation, it could lead to a Denial of Service (DoS) or system crash.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.