WebSphere Application Server Remote Code Execution Vulnerability (CVE-2020-4276 and CVE-2020-4362) Threat Alert

WebSphere Application Server Remote Code Execution Vulnerability (CVE-2020-4276 and CVE-2020-4362) Threat Alert

abril 17, 2020 | Adeline Zhang


IBM released security advisories to announce the fix of two remote code execution vulnerabilities (CVE-2020-4276 and CVE-2020-4362) in WebSphere Application Server.

The two vulnerabilities exist when WebSphere uses token-based authentication in an admin request over the SOAP connector.

By sending a maliciously crafted request to WebSphere SOAP Connector, an attacker could execute arbitrary code on an affected server in an unauthorized way.

Affected Versions

  • WebSphere Application Server –
  • WebSphere Application Server –
  • WebSphere Application Server –
  • WebSphere Application Server –

Note: Official support is no longer available for WebSphere Application Server V7.0 and V8.0.

Unaffected Versions

  • WebSphere Application Server >=
  • WebSphere Application Server >=


IBM has released the latest version to fix these vulnerabilities. Affected users are advised to upgrade WebSphere Application Server as soon as possible.

For vulnerable versions for which official support is unavailable, IBM also provides patches.

Please download the patches from the following addresses:



In addition, restrict the range of IP addresses that can access the default listening port (8880) of WebSphere SOAP Connector.

For more information, see IBM’s official security advisories at the following links:




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