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CVE-2020-2555

Published: Jan 15, 2020Updated: Oct 27, 2025 Sources: CVE List NVD BDUCWE-502
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
97.1%
Top 0.1%
CISA KEV
Active Exploitation
Since Nov 3, 2021
Exploits
3 Known
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

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).

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-502

Affected Products

access manageroracle
On-prem
Databases / relational
coherenceoracle
On-premDatabase
Databases / nosql
commerce platformoracle
On-premWeb App
Enterprise Software
communications diameter signaling routeroracle
On-prem
Databases / cache-message-queue
healthcare data repositoryoracle
On-prem
Databases / relational
oraclecommercialUSDatabasesaka oracle corp.
and 11 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Nov 3, 2021
Remediation due:May 3, 2022

Required action: Apply updates per vendor instructions.

3 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

http://packetstormsecurity.com/files/157054/Oracle-Coherence-Fusion-Middleware-Remote-Code-Execution.html
packetstormsecurity.com
http://packetstormsecurity.com/files/157207/Oracle-WebLogic-Server-12.2.1.4.0-Remote-Code-Execution.html
packetstormsecurity.com
http://packetstormsecurity.com/files/157795/WebLogic-Server-Deserialization-Remote-Code-Execution.html
packetstormsecurity.com
and 9 more references View all →

Timeline

Published
Jan 15, 2020
Added to CISA KEV
Nov 3, 2021
Last Updated
Oct 27, 2025

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