CVE-2026-11788

MEDIUM

389-ds-base: 389-ds-base: null pointer dereference in deref control plugin ber parser

Title source: cna

Description

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure.

References (3)

Core 3

Core References

Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat

https://access.redhat.com/security/cve/CVE-2026-11788

Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat

RHBZ#2485423

https://bugzilla.redhat.com/show_bug.cgi?id=2485423

https://redhat.atlassian.net/browse/PSIRTSUPT-7600

Scores

CVSS v3 5.9

EPSS 0.0041

EPSS Percentile 32.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (16)

Red Hat/Red Hat Directory Server 11

Red Hat/Red Hat Directory Server 12

Red Hat/Red Hat Directory Server 13

Red Hat/Red Hat Enterprise Linux 10

Red Hat/Red Hat Enterprise Linux 6

Red Hat/Red Hat Enterprise Linux 7

Red Hat/Red Hat Enterprise Linux 8

Red Hat/Red Hat Enterprise Linux 9

redhat/389_directory_server

redhat/directory_server 11.0

... and 6 more

Published Jun 09, 2026

Tracked Since Jun 09, 2026