CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- Oracle WebLogic Server Unspecified Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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).
Affected products
oracle: weblogic server
References9
- www.oracle.com/security-alerts/cpuapr2020.html Vendor Advisory
- www.oracle.com/security-alerts/cpuapr2020.html Vendor Advisory
- packetstormsecurity.com/files/157950/WebLogic-Server-Deserializ… Third Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-20-504/ Third Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-20-570/ Third Party AdvisoryVDB Entry
- packetstormsecurity.com/files/157950/WebLogic-Server-Deserializ… Third Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-20-504/ Third Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-20-570/ Third Party AdvisoryVDB Entry
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=… US Government Resource
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 95% percentile: 100 · as of 11 November 2026
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