CVE-2026-11787
389-ds-base: 389-ds-base: heap buffer over-read in ldap_utf8prev() via str2simple filter parsing
- State
- Published
- Severity
- 5.0 Medium
- Published
- Jun 9, 2026
- Updated
- Jun 30, 2026
- Reserved
- Jun 9, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.0 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L | redhat |
Weaknesses
- CWE-126 Buffer Over-read
Affected Products
| Product | Versions |
|---|---|
Red Hat Directory Server 11Red Hat | |
Red Hat Directory Server 12Red Hat | |
Red Hat Directory Server 13Red Hat | |
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 6Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-11787vdb-entry
- RHBZ#2485425issue-tracking
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.