CVE-2026-11884
MEDIUM EPSS 28.0%
Published Jun 10, 20262w ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Published Jun 10, 2026 2w ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
28.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-122
References 4
- access.redhat.com https://access.redhat.com/security/cve/CVE-2026-11884
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2423624
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2484913
- redhat.atlassian.net https://redhat.atlassian.net/browse/PSIRTSUPT-7600
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.