CVE-2020-2883
Published: January 7, 2025
Official Description
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.
CISA KEV Advisory
Oracle WebLogic Server Unspecified Vulnerability
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.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Risk Analysis
Oracle WebLogic Server, part of Fusion Middleware, contains an unspecified vulnerability that allows an unauthenticated attacker to exploit it via IIOP or T3 network access. The high EPSS score of 0.94357 indicates a very high likelihood of exploitation, and it is confirmed to be actively exploited as per CISA's KEV catalog.
This vulnerability is actively exploited in the wild. The flaw is remotely exploitable by an unauthenticated attacker via IIOP or T3 protocols.
Apply the latest security patches and updates for Oracle WebLogic Server to address this vulnerability. Restrict network access to IIOP and T3 ports where possible.
Technical Analysis
CVE-2020-2883 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2020-2883 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-2883 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1