🛡️ CVE-2026-11884
🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-122 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CWE CWE-122
Public Exploit ✅ No
Source NVD
Published 2026-06-10
Updated 2026-06-11
Modified 2026-06-10
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

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