// For flags

CVE-2021-20600

 

Severity Score

5.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Uncontrolled resource consumption in Mitsubishi Electric MELSEC iQ-R series C Controller Module R12CCPU-V Firmware Versions "16" and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending a large number of packets in a short time while the module starting up. System reset is required for recovery.

El consumo incontrolado de recursos en el módulo controlador C de la serie MELSEC iQ-R de Mitsubishi Electric R12CCPU-V, versiones de firmware "16" y anteriores, permite que un atacante remoto no autenticado provoque una condición de denegación de servicio (DoS) mediante el envío de un gran número de paquetes en poco tiempo durante el arranque del módulo. Se requiere un reinicio del sistema para la recuperación

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-17 CVE Reserved
  • 2021-10-08 CVE Published
  • 2024-06-23 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mitsubishielectric
Search vendor "Mitsubishielectric"
 R12ccpu-v Firmware
Search vendor "Mitsubishielectric" for product "R12ccpu-v Firmware"
 <= 16
Search vendor "Mitsubishielectric" for product "R12ccpu-v Firmware" and version " <= 16"
-
Affected
in Mitsubishielectric
Search vendor "Mitsubishielectric"
 R12ccpu-v
Search vendor "Mitsubishielectric" for product "R12ccpu-v"
--
Safe