CVE-2020-2883

Oracle WebLogic Server Unspecified

9.8 CRITICALActively exploited (CISA KEV)EPSS 94.9%

Published15 Apr 2020
Added to CISA KEV7 Jan 2025
Remediation due28 Jan 2025

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).

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Oracle Weblogic Server10.3.6.0.0 · 12.1.3.0.0 · 12.2.1.3.0 · 12.2.1.4.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

https://www.oracle.com/security-alerts/cpuapr2020.html

References

http://packetstormsecurity.com/files/157950/WebLogic-Server-Deserialization-Remote-Code-Execution.htmlThird Party AdvisoryVDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2883US Government Resource
https://www.oracle.com/security-alerts/cpuapr2020.htmlVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-504/Third Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-570/Third Party AdvisoryVDB Entry

Frequently asked

Is CVE-2020-2883 being actively exploited?

Yes. CVE-2020-2883 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 7 Jan 2025.

How severe is CVE-2020-2883?

CVE-2020-2883 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 94.9% probability of exploitation.

Which products are affected by CVE-2020-2883?

Affected products include Oracle Weblogic Server.

How do I fix CVE-2020-2883?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2020-2883 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.