CVE-2021-20600

MEDIUM
5.9
CVSS Score
Published: October 8, 2021 at 04:42 PM UTC
Updated: June 17, 2026 at 03:34 AM UTC
2 products affected across 1 vendorR12CCPU V FirmwareR12Ccpu-V

Using Mitsubishi Electric MELSEC iQ-R series C Controller Module R12CCPU-V by N/A?

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Severity
MEDIUM5.9
Exploit prediction
EPSS 2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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