CVE-2020-2883 Oracle WebLogic Server Unspecified

Exploited in the wild Critical 9.8 Published 15 Apr 2020 Updated 12 Jan 2026

Unauthenticated attackers can take over Oracle WebLogic Server via network access using IIOP or T3 protocols.

Exploited in the wild: Since 7 Jan 2025
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-2883?

CVE-2020-2883 is a critical vulnerability in Oracle Weblogic Server, published on 15 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Which versions are affected by CVE-2020-2883?

It affects 1 product.

Products include Oracle Weblogic Server.

How do I fix CVE-2020-2883?

No fix has been published for CVE-2020-2883 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 28 Jan 2025.

Is CVE-2020-2883 being exploited?

Yes. Attackers have exploited CVE-2020-2883 in the wild since at least 7 Jan 2025.

Public exploit code: 1 Metasploit module, 1 Nuclei template and 7 proofs of concept on GitHub.

All Oracle Weblogic Server vulnerabilities

Sources

Also known as GHSA-9x8q-p3qp-r24w.