CVE-2025-36038

IBM WebSphere Application Server code execution

Description

IBM WebSphere Application Server 8.5 and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially crafted sequence of serialized objects.

Remediation

Solution:

  • For IBM WebSphere Application Server traditional: For V9.0.0.0 through 9.0.5.24: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH66674 --OR-- · Apply Fix Pack 9.0.5.25 or later (targeted availability 3Q2025). For V8.5.0.0 through 8.5.5.27: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH66674 --OR-- · Apply Fix Pack 8.5.5.28 or later (targeted availability 3Q2025). Additional interim fixes may be available and linked off the interim fix download page.

Category

9.0
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.19%
Vendor Advisory ibm.com
Affected: IBM WebSphere Application Server
Published at:
Updated at:

References

Link Tags
https://www.ibm.com/support/pages/node/7237967 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-36038?
CVE-2025-36038 has been scored as a critical severity vulnerability.
How to fix CVE-2025-36038?
To fix CVE-2025-36038: For IBM WebSphere Application Server traditional: For V9.0.0.0 through 9.0.5.24: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH66674 --OR-- · Apply Fix Pack 9.0.5.25 or later (targeted availability 3Q2025). For V8.5.0.0 through 8.5.5.27: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH66674 --OR-- · Apply Fix Pack 8.5.5.28 or later (targeted availability 3Q2025). Additional interim fixes may be available and linked off the interim fix download page.
Is CVE-2025-36038 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-36038 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-36038?
CVE-2025-36038 affects IBM WebSphere Application Server.
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