🛡️ CVE-2025-27497
🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-835 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenDJ is an LDAPv3 compliant directory service. OpenDJ prior to 4.9.3 contains a denial-of-service (DoS) vulnerability that causes the server to become unresponsive to all LDAP requests without crashing or restarting. This issue occurs when an alias loop exists in the LDAP database. If an ldapsearch request is executed with alias dereferencing set to "always" on this alias entry, the server stops responding to all future requests. Fortunately, the server can be restarted without data corruption. This vulnerability is fixed in 4.9.3.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE CWE-835
Public Exploit ✅ No
Source NVD
Published 2025-03-05
Updated 2026-06-02
Modified 2025-03-05
Fix URL N/A

Affected Packages

Software From version Fixed in
org.openidentityplatform.opendj:opendj-server-legacy 4.9.3
unknown

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