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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-11884 Detail

Description

A heap buffer overflow flaw was found in 389 Directory Server. When serializing objectclass definitions, the oc_superior (SUP) field length is omitted from buffer size calculations in read_schema_dse() and schema_oc_to_string(), but the field is still written via strcat(). An attacker with Directory Manager privileges, or a compromised replication supplier, can trigger a server crash by creating objectclasses with long SUP values. This is an incomplete fix variant of CVE-2025-14905.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://access.redhat.com/security/cve/CVE-2026-11884 Red Hat, Inc.
https://bugzilla.redhat.com/show_bug.cgi?id=2423624 Red Hat, Inc.
https://bugzilla.redhat.com/show_bug.cgi?id=2484913 Red Hat, Inc.
https://redhat.atlassian.net/browse/PSIRTSUPT-7600 Red Hat, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-122 Heap-based Buffer Overflow Red Hat, Inc.  

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-11884
NVD Published Date:
06/10/2026
NVD Last Modified:
06/17/2026
Source:
Red Hat, Inc.