CVE-2026-11787

MEDIUM

389-ds-base: 389-ds-base: heap buffer over-read in ldap_utf8prev() via str2simple filter parsing

Title source: cna
STIX 2.1

Description

A flaw was found in 389 Directory Server. The ldap_utf8prev() function reads bytes before the start of a buffer without bounds checking, causing a heap buffer over-read in string filter parsing that may influence internal filter processing behavior.

References (3)

Core 3
Core References
Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-11787
Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat
RHBZ#2485425
https://bugzilla.redhat.com/show_bug.cgi?id=2485425

Scores

CVSS v3 5.0
EPSS 0.0020
EPSS Percentile 10.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-126
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