PatchTheCVEwebsphere extreme scale vulnerabilities and fixes
Recent CVEs affecting websphere extreme scale, with upgrade or downgrade steps. 4 tracked.
Also searched as: websphereextremescale.
websphere extreme scale has 4 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 4. Most recent: 2026-06-30. Highest priority: CVE-2026-13773 (score 44/100).
- CVE-2026-13773 MEDIUM 6.0 UPGRADE IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 Approximately 50 generated CORBA stub classes in WebSphere
- CVE-2026-13759 HIGH 7.5 UPGRADE IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 ships three ObjectInputStream subclasses (WsObjectInputStr
- CVE-2026-13772 HIGH 7.5 UPGRADE IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 's Object Query Language engine resolves attacker-supplied
- CVE-2026-9002 MEDIUM 6.5 UPGRADE IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of serv
FAQ
How do I fix websphere extreme scale vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is websphere extreme scale being exploited right now?
None of the tracked websphere extreme scale CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which websphere extreme scale CVE should I patch first?
CVE-2026-13773 currently ranks highest (44/100): IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 Approximately 50 generated CORBA stub classes in WebSphere.