9.5

CVE-2025-15579: opentext™ directory services Deserialization of Untrusted Data

CVSS: 9.5v4.0CriticalDeferred
Published 18-02-2026Last modified 27-02-2026
Open JSON

Vulnerability summary

CVE-2025-15579 is a critical (CVSS 9.5) Deserialization of Untrusted Data vulnerability in opentext™ directory services. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.5/10
010
Critical · v4.0 (CVE.org)
EPSS score
0.43%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-02-2026
    PublishedVulnerability first disclosed.
  2. 27-02-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

+0.09 pp

From 0.34% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Opentext™1 product
  • directory services< 24.4.16 | ≥ 25.1, < 25.1.9 | ≥ 25.2, < 25.2.9 | ≥ 25.3, < 25.3.8 | ≥ 25.4, < 25.4.5 | ≥ 26.1, < 26.1.2

1 vendor · 1 product

References

1 links