CVE-2020-2883

What the flaw is

Oracle WebLogic Server, a product within the Fusion Middleware suite, contains an unspecified vulnerability exploitable by an unauthenticated attacker with network access via IIOP or T3.

Description as published by CISA. We have not independently reproduced it.

What CISA requires

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

This deadline is binding on US federal civilian agencies under BOD 22-01. It is not a legal deadline for anyone else, but it is a useful urgency signal — CISA sets it by how actively the flaw is being used, not by CVSS.

Public exploit code

138 public repositories referencing this CVE have been catalogued on GitHub. That volume usually means a reliable, widely-reproduced exploit. Treat this as a strong signal to prioritise patching, not as a verified working exploit — many such repositories are scanners, write-ups or forks rather than functional code.

• 0x727/JNDIExploit
• 0xMarcio/cve
• 0xT11/CVE-POC
• 0xdu/WLExploit
• 0xi7/Log4j
• 0xn0ne/weblogicScanner
• 20142995/nuclei-templates
• 20142995/sectool

Showing 8 of 138. Full list in the trickest/cve dataset.

Vendor advisories

• www.oracle.com/security-alerts/cpuapr2020.html
• nvd.nist.gov/vuln/detail/CVE-2020-2883

Primary sources

• NVD entry — CVSS score, CPE list and references
• CISA KEV catalog — the source for this page
• CVE Record at cve.org