CVE-2026-13773
6.0 · MEDIUMOverview
CVE-2026-13773 is a medium-severity vulnerability affecting ibm websphere_extreme_scale. It was published on June 30, 2026 and has a CVSS 3.1 base score of 6.0 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 Approximately 50 generated CORBA stub classes in WebSphere eXtreme Scale's ogclient.jar call ORB.string_to_object() on an attacker-controlled IOR string during Java deserialization, turning any unfiltered ObjectInputStream sink in WAS into outbound IIOP SSRF to an attacker-chosen host; when chained with the IBM ORB's getUserException class-instantiation flaw (WAS-26), this SSRF escalates to remote code execution on the calling JVM.
Remediation
Check the references section for vendor advisories and patches from ibm. Update websphere_extreme_scale to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| ibm | websphere_extreme_scale | 8.6.1.0 | Affected |
References
Frequently Asked Questions
What is CVE-2026-13773?
CVE-2026-13773 is a medium-severity vulnerability affecting ibm websphere_extreme_scale. It was published on June 30, 2026 and has a CVSS 3.1 base score of 6.0 (MEDIUM).
How severe is CVE-2026-13773?
This vulnerability has a CVSS 3.1 base score of 6.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-13773?
Check the references section for vendor advisories and patches from ibm. Update websphere_extreme_scale to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-13773?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-13773 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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