Critical severity · published Feb 3, 2023
CVE-2023-23477
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…
9.8
CVSS
1.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WA
Websphere Application Server · Ibm
8.5; 9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-23477
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-23477
VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/245513
Vendor Advisory
https://www.ibm.com/support/pages/node/6891111
More from Websphere Application Server
9.8
CVE-2015-7450
IBM WebSphere Application Server and Server Hypervisor Edition Code Injection.
9.8
CVE-2026-8400
Multiple Vulnerabilities in IBM® Java SDK affect IBM WebSphere Application Server and WebSphere Application Server Liberty due to the July 2026 CPU
9.8
CVE-2026-14529
IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a server-side request forgery
9.8
CVE-2026-14446
IBM WebSphere Application Server is affected by a privilege escalation
9.8
CVE-2026-14512
IBM WebSphere Application Server is affected by an unsafe deserialization and exposure of sensitive information