CVE-2026-9330EPSS p29.9%

CVE-2026-9330CVE-2026-9330

ibm / websphere_application_server

Description

IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined with a suitable gadget chain.

Scoring

CVSS 8.5 ()
VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS0.38% probability of exploitation · percentile 29.9% · 2026-06-19T12:03:05Z
Last modified2026-06-04

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.