CVE-2023-38264: IBM SDK, Java Technology Edition denial of service

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-14 · updated 2026-06-17
Weakness: CWE-502

Description

The IBM SDK, Java Technology Edition's Object Request Broker (ORB) 7.1.0.0 through 7.1.5.21 and 8.0.0.0 through 8.0.8.21 is vulnerable to a denial of service attack in some circumstances due to improper enforcement of the JEP 290 MaxRef and MaxDepth deserialization filters. IBM X-Force ID: 260578.

Affected products

IBM Java Software Development Kit: from 7.1.0.0 before 7.1.5.22; from 8.0.0.0 before 8.0.8.25 — fixed in 7.1.5.22, 8.0.8.25

How to fix

Upgrade to a fixed version: IBM Java Software Development Kit 7.1.5.22, 8.0.8.25. Check the vendor advisory for mitigations.

References

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