CVE-2026-9311CWE-94

IBM WebSphere Application Server is affected by remote code execution

Critical · published June 1, 2026

CVSS v3.1
9.0
EPSS
1%
Percentile
50.0
In the wild
Unconfirmed
What it is

IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to remote code execution caused by the bypass of security controls.

The record
Technical detail
CVSS v3.1
9.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00639 · 50.0th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-06-01T17:49Z
EPSS history
Timeline
  • 01 JUN 17:49Z
    IBM WebSphere Application Server is affected by remote code execution
    cvelistv5