CVE-2026-83021 – Oracle WebLogic Server

CVSS 10 CRITICAL [2] Critical – Same Day Deployment

“Five critical flaws in one application server leave no room for a slow patch cycle.”

This Oracle WebLogic Server update fixes five Critical severity vulnerabilities. Every CVE in this batch scores 9.8 or higher, and one has the maximum possible score. WebLogic Server often hosts business-critical applications and middleware, so these flaws put core enterprise services at direct risk.

The update covers CVE-2026-70748, CVE-2026-70756 and CVE-2026-70757, each with a CVSS score of 9.8, Critical severity. CVE-2026-83021 has a CVSS score of 10.0, Critical severity. CVE-2026-83038 has a CVSS score of 9.9, Critical severity. Deploy this patch to all WebLogic Server instances the same day, starting with internet-facing servers.

Key Details

Affected Product
Oracle Weblogic Server
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
CWE Classification
CWE-287
Patch this CVE on all your endpoints in under 5 minutes. First 200 endpoints are free forever, scale as needed.