CVE-2025-2487: Null Dereference (CVSS 4.9)

Description

A flaw was found in the 389-ds-base LDAP Server. This issue occurs when issuing a Modify DN LDAP operation through the ldap protocol, when the function return value is not tested and a NULL pointer is dereferenced. If a privileged user performs a ldap MODDN operation after a failed operation, it could lead to a Denial of Service (DoS) or system crash.

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CVSS v3.1 Score

4.9

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

References

Other References

https://access.redhat.com/errata/RHSA-2025:3663 https://access.redhat.com/errata/RHSA-2025:3670 https://access.redhat.com/errata/RHSA-2025:4491 https://access.redhat.com/errata/RHSA-2025:7395 https://access.redhat.com/security/cve/CVE-2025-2487 https://bugzilla.redhat.com/show_bug.cgi?id=2353071

Frequently Asked Questions

What is CVE-2025-2487? +

A flaw was found in the 389-ds-base LDAP Server. This issue occurs when issuing a Modify DN LDAP operation through the ldap protocol, when the function return value is not tested and a NULL pointer is dereferenced. If a privileged user performs a ldap MODDN operation after a failed operation, it could lead to a Denial of Service (DoS) or system crash. It has a CVSS v3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2025-2487? +

CVE-2025-2487 has a CVSS v3.1 score of 4.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-2487? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-2487