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01 Record

CVE-2025-15579

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

CriticalPUBLISHEDCNA: OpenText
CNA base score9.5 CVSS v4.0CVSS: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

02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.43% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 37.1% of scored records. A rank, not a probability.
NVD base score
9.5 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:U/V:C/RE:M/U:Red
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-02-18 14:57Z8 MO AGO
Last updated
2026-02-27 21:46Z8 MO AGO
Reserved
2026-02-17
Assigning CNA
OpenText
Record state
PUBLISHED
Severity
Critical (CVSS 9.5)
CNA CVSS vector
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
Weaknesses
  • CWE-502Deserialization of Untrusted DataBase
Data version
5.2
Document digest
dd48b7b0ca437e317e01c5ecbe05d70f1798a41fa8ab8cd4deee66df4e995367

05 Affected products

VendorProductVersionsPlatforms
OpenText™Directory Services0 to < 24.4.16, 25.1 to < 25.1.9, 25.2 to < 25.2.9, 25.3 to < 25.3.8, 25.4 to < 25.4.5, 26.1 to < 26.1.2—

06 References

07 Remediation

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