How severe is CVE-2020-2883?

CVE-2020-2883 has a CVSS 3.0 base score of 9.8 (CRITICAL). EPSS estimates a 94.9% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2020-2883: Oracle WebLogic Server Unspecified Vulnerability

CISA Known Exploited Vulnerabilities

Oracle WebLogic Server Unspecified Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2025-01-07

Remediation due

2025-01-28

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

CISA notes
https://www.oracle.com/security-alerts/cpuapr2020.html ; https://nvd.nist.gov/vuln/detail/CVE-2020-2883

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).

Severity

CVSS 3.0 · CNA9.8 CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Exploitation Context

as of October 15, 2026

All KEV statistics→

CISA added CVE-2020-2883 to the KEV catalog 1,728 days after its CVE record was published. The median for entries added in 2025 is 26 days.
It is one of 46 Oracle entries in the CISA KEV catalog, and one of 5 added in 2025.
Its current EPSS score (94.9%) is higher than that of 78% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
Oracle Corporation	Oracle Corporation WebLogic Server	10.3.6.0.0 12.1.3.0.0 12.2.1.3.0 12.2.1.4.0

References

4 Links

Other references

Record Details

Published

2020-04-15

Last updated

2026-01-12

Assigner (CNA)

oracle

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.