7.5

CVE-2026-3621: ibm websphere_application_server Improper Privilege Management

CVSS: 7.5v3.1HighAnalyzed
Published 22-04-2026Last modified 24-04-2026
Open JSON

Vulnerability summary

CVE-2026-3621 is a high (CVSS 7.5) Improper Privilege Management vulnerability in ibm websphere_application_server. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.3% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.37%
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. 22-04-2026
    PublishedVulnerability first disclosed.
  2. 24-04-2026
    Last modifiedVulnerability information updated.

Description

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.4 IBM WebSphere Application Server Liberty is vulnerable to identity spoofing under limited conditions when an application is deployed without authentication and authorization configured.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.37%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

+0.09 pp

From 0.28% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.37%

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

Ibm2 products

1 vendor · 2 products

References

1 links