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CVE-2025-36038

IBM Websphere Application Server remote code execution

9.0 CRITICALEPSS 13.3%
  1. Published25 Jun 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

IBM Websphere Application Server≥ 8.5 < 8.5.5.28 · ≥ 9.0 < 9.0.5.25

Remediation

Fixed in
IBM Websphere Application Server≥ 8.5.5.28

References

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Frequently asked

Is CVE-2025-36038 being actively exploited?

CVE-2025-36038 is not in the CISA KEV catalog. Its EPSS exploit probability is 13.3%.

How severe is CVE-2025-36038?

CVE-2025-36038 has a CVSS 3.1 base score of 9.0, rated critical. EPSS estimates a 13.3% probability of exploitation.

Which products are affected by CVE-2025-36038?

Affected products include IBM Websphere Application Server.

How do I fix CVE-2025-36038?

Upgrade affected software to a fixed version, for example IBM Websphere Application Server 8.5.5.28 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-36038 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.