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CVE-2021-20600

nvd nist
Published: Oct 8, 2021Modified: Jun 17, 2026

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5.9
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.2 / Impact: 3.6
Source: NVD

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 (1)

Mitsubishielectric
1 product
R12ccpu V Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
R12ccpu V Firmware
Up to 16
Running on/withPlatform Versions
Mitsubishielectric
R12ccpu V
All versions

Related CWEs

CWE-400
Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (6)

Source: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
Third Party Advisory
Source: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
Third Party AdvisoryUS Government Resource
Source: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryUS Government Resource
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.