CVE-2025-27497CWE-835

OpenDJ Denial of Service (Dos) using alias loop

High · published March 5, 2025

CVSS v4.0
8.7
EPSS
0%
Percentile
31.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
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
EPSS
0.00389 · 31.9th percentile
Weakness
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')
Published
2025-03-05T15:59Z
EPSS history
Timeline
  • 05 MAR 15:59Z
    OpenDJ Denial of Service (Dos) using alias loop
    cvelistv5