Privilege escalation in IBM Websphere Application Server

CVE-2026-9327

IBM WebSphere Application Server 9.0, and 8.5 could allow an authenticated user with a low-privilege administrative role to modify security configuration. This could result in information disclosure or denial of service.

Vulnerability class: Privilege Escalation

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (30.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-9327: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-9327?
CVE-2026-9327 is a medium-severity vulnerability in IBM Websphere Application Server, classified under Improper Privilege Management. CVSS score: 6.3/10. Published 2026-09-10.
How severe is CVE-2026-9327?
Medium severity. CVSS v3 base score is 6.3 out of 10.