WebLogic Remote Code Execution Vulnerabilities (CVE-2020-2801, CVE-2020-2883, and CVE-2020-2884) Threat Alert

WebLogic Remote Code Execution Vulnerabilities (CVE-2020-2801, CVE-2020-2883, and CVE-2020-2884) Threat Alert

maio 4, 2020 | Adeline Zhang


On April 15, 2020, Beijing time, Oracle released Critical Patch Update (CPU) for April 2020 that fixes 397 vulnerabilities of different risk levels.

These vulnerabilities include three critical ones (CVE-2020-2801, CVE-2020-2883, and CVE-2020-2884) that target Oracle WebLogic Server with a CVSS score of 9.8.

These vulnerabilities allow unauthenticated attackers with network access via T3 to compromise vulnerable Oracle WebLogic Server. Successful exploitation could result in takeover of Oracle WebLogic Server, hence remote code execution.

Reference link:


Affected Versions

  • Oracle WebLogic Server
  • Oracle WebLogic Server
  • Oracle WebLogic Server
  • Oracle WebLogic Server


Oracle has released patches to fix these vulnerabilities. Affected users should visit the official security bulletin link to download related patches as soon as possible and apply them as indicated in the readme file to ensure long-term effective protection.

Note: Official patches of Oracle can be downloaded only by those with a licensed account of the software. Such users can use that account to log in to https://support.oracle.com to obtain the latest patch.


If you cannot install patches for the time being, disable the T3 protocol to protect against this vulnerability.

For more information, see Oracle’s official security advisory at the following link:



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