CVE-2025-15579

An Insecure Deserialization vulnerability has been discovered in OpenText™ Directory Services.

State: Published
Severity: 9.5 Critical
Published: Feb 18, 2026
Updated: Feb 27, 2026
Reserved: Feb 17, 2026

Description

Deserialization of Untrusted Data vulnerability in OpenText™ Directory Services allows Object Injection.

The vulnerability could lead to remote code execution, denial of service, or privilege escalation.

This issue affects Directory Services: before 24.4.16, from 25.1 before 25.1.9, from 25.2 before 25.2.9, from 25.3 before 25.3.8, from 25.4 before 25.4.5, from 26.1 before 26.1.2.

Scores

CVSS	Score	Vector	Source
4.0	9.5 Critical	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:U/V:C/RE:M/U:Red	OpenText

Weaknesses

CWE-502 Deserialization of Untrusted Data

Affected Products

Product	Versions
Directory ServicesOpenText™	before 24.4.16Affected 25.1 to before 25.1.9Affected 25.2 to before 25.2.9Affected 25.3 to before 25.3.8Affected 25.4 to before 25.4.5Affected 26.1 to before 26.1.2Affected

References

https://support.opentext.com/csm?id=ot_kb_unauthenticated&sysparm_article=KB0859600&sys_kb_id=f82c01214707b6144549b6bd416d43b7&spa=1

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