---
id: CVE-2025-14905
title: A flaw was found in the 389-ds-base server
summary: >-
  A flaw was found in the 389-ds-base server. A heap buffer overflow
  vulnerability exists in the `schema_attr_enum_callback` function within the
  `schema.c` file. This occurs because the code incorrectly calculates the
  buffer size by summin…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-122
published: '2026-02-23'
updated: '2026-06-25'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-14905'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:3189'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:3208'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:3379'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:3504'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:4207'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:4661'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:4720'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:5196'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:5511'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:5512'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:5513'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:5514'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:5568'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:5569'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:5576'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:5597'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:5598'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:6220'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:6268'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2025-14905'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2423624'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.01182
epssPercentile: 0.66424
ingestedAt: '2026-06-29T13:24:34.642Z'
---

## Overview

A flaw was found in the 389-ds-base server. A heap buffer overflow vulnerability exists in the `schema_attr_enum_callback` function within the `schema.c` file. This occurs because the code incorrectly calculates the buffer size by summing alias string lengths without accounting for additional formatting characters. When a large number of aliases are processed, this oversight can lead to a heap overflow, potentially allowing a remote attacker to cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE).

## Remediation

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