Description
IBM WebSphere Application Server 9.0, and 8.5 traditional is vulnerable to pre-authentication unsafe deserialization which could allow a remote attacker to bypass authentication or execute arbitrary code.
Affected products
ibm: websphere application server
References1
- www.ibm.com/support/pages/node/7281649 Vendor Advisory
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 62 · as of 13 November 2026
- CWE
- CWE-502
Could this be exploited in your environment?
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