CISA-confirmed known exploited vulnerability

CVE-2020-14644

Oracle WebLogic Server Remote Code Execution Vulnerability

Oracle · WebLogic Server

Vulnerability details

Oracle WebLogic Server, a product within the Fusion Middleware suite, contains a deserialization vulnerability. Unauthenticated attackers with network access via T3 or IIOP can exploit this vulnerability to achieve remote code execution.

Added to CISA KEV: 2024-09-18

Ransomware campaign use: Unknown

CISA due date: 2024-10-09

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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