CISA-confirmed known exploited vulnerability

CVE-2020-2551

Oracle Fusion Middleware Unspecified Vulnerability

Oracle · Fusion Middleware

Vulnerability details

Oracle Fusion Middleware contains an unspecified vulnerability in the WLS Core Components that allows an unauthenticated attacker with network access via IIOP to compromise the WebLogic Server.

Added to CISA KEV: 2023-11-16

Ransomware campaign use: Unknown

CISA due date: 2023-12-07

Defensive guidance from CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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