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Oracle · WebLogic Server

CVE-2020-2883

Oracle WebLogic Server Unspecified Vulnerability

Exploited in attacks Critical 9.8 Attack chance: 95%
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What it is

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).

CISA: 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.

What to do

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

Deadline for US federal agencies: January 28, 2025

Added to the CISA list
January 7, 2025
Published
April 15, 2020
Severity
Critical 9.8 CVSS 3.0
Chance of attacks in the next 30 days (EPSS)
95% in the top 0.1% of all known vulnerabilities
More details
NVD · CVE.org · CISA
All references (4)

More exploited flaws from Oracle

AddedVulnerabilityProductSeverityAttack chance
Jun 1, 2026UnspecifiedCVE-2024-21182WebLogic ServerHigh 7.574%
Sep 18, 2024Remote Code ExecutionCVE-2020-14644WebLogic ServerCritical 9.895%
Jun 3, 2024OS Command InjectionCVE-2017-3506WebLogic ServerHigh 7.496%
May 1, 2023UnspecifiedCVE-2023-21839WebLogic ServerHigh 7.599.9%
Sep 8, 2022UnspecifiedCVE-2018-2628WebLogic ServerCritical 9.8>99.9%
Feb 10, 2022Corporation WebLogic Server Remote Code ExecutionCVE-2017-10271used by ransomwareWebLogic ServerHigh 7.5>99.9%
Jan 10, 2022WebLogic Server, InjectionCVE-2019-2725used by ransomwareWebLogic ServerHigh 7.5>99.9%
Nov 3, 2021Deserialization of Untrusted DataCVE-2015-4852WebLogic ServerCritical 9.895%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.