CVE-2020-2555

Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Caching,CacheStore,Invocation). Supported versions that are affected are 3.7.1.0, 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 T3 to compromise Oracle Coherence. Successful attacks of this vulnerability can result in takeover of Oracle Coherence. 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).

• CWE-502
• CWE-502

• http://packetstormsecurity.com/files/157054/Oracle-Coherence-Fusion-Middleware-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
• http://packetstormsecurity.com/files/157207/Oracle-WebLogic-Server-12.2.1.4.0-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
• http://packetstormsecurity.com/files/157795/WebLogic-Server-Deserialization-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
• https://www.oracle.com/security-alerts/cpujan2020.htmlVendor Advisory
• https://www.oracle.com/security-alerts/cpujan2021.htmlVendor Advisory
• https://www.oracle.com/security-alerts/cpujul2020.htmlVendor Advisory
• https://www.oracle.com/security-alerts/cpujul2021.htmlPatch, Vendor Advisory
• https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Vendor Advisory
• http://packetstormsecurity.com/files/157054/Oracle-Coherence-Fusion-Middleware-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
• http://packetstormsecurity.com/files/157207/Oracle-WebLogic-Server-12.2.1.4.0-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
• http://packetstormsecurity.com/files/157795/WebLogic-Server-Deserialization-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
• https://www.oracle.com/security-alerts/cpujan2020.htmlVendor Advisory
• https://www.oracle.com/security-alerts/cpujan2021.htmlVendor Advisory
• https://www.oracle.com/security-alerts/cpujul2020.htmlVendor Advisory
• https://www.oracle.com/security-alerts/cpujul2021.htmlPatch, Vendor Advisory
• https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Vendor Advisory
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2555US Government Resource

Published

Jan 15, 2020

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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