What’s Vulnerable › Vulnerabilities

CVE-2023-23477: IBM WebSphere Application Server code execution

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-02-03 · updated 2026-06-17
• Weakness: CWE-94

Description

IBM WebSphere Application Server 8.5 and 9.0 traditional could allow a remote attacker to execute arbitrary code on the system with a specially crafted sequence of serialized objects. IBM X-Force ID: 245513.

Affected products

• IBM WebSphere Application Server: 8.5, 9.0

References

• https://exchange.xforce.ibmcloud.com/vulnerabilities/245513
• https://www.ibm.com/support/pages/node/6891111
• https://exchange.xforce.ibmcloud.com/vulnerabilities/245513
• https://www.ibm.com/support/pages/node/6891111

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