CVE-2021-20600

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-20600
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.

5.9 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.1 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:C

Exploitability : 8.6 / Impact : 6.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References
Link Resource
https://jvn.jp/vu/JVNVU94914666/index.html Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-280-04 Third Party Advisory US Government Resource
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-015_en.pdf Vendor Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:mitsubishielectric:r12ccpu-v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r12ccpu-v:-:*:*:*:*:*:*:*
History

16 May 2023, 22:50

Type Values Removed Values Added
CVSS v2 : 4.3
v3 : 5.9 		v2 : 7.1
v3 : 5.9

07 Jul 2022, 16:15

Type Values Removed Values Added
Summary Uncontrolled resource consumption in MELSEC iQ-R series C Controller Module R12CCPU-V all versions 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. 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.

17 Nov 2021, 22:17

Type Values Removed Values Added
Summary Uncontrolled resource consumption in MELSEC iQ-R series C Controller Module R12CCPU-V all versions 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. Uncontrolled resource consumption in MELSEC iQ-R series C Controller Module R12CCPU-V all versions 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.

10 Nov 2021, 01:16

Type Values Removed Values Added
Summary Uncontrolled resource consumption in MELSEC iQ-R series C Controller Module R12CCPU-V all versions 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. Uncontrolled resource consumption in MELSEC iQ-R series C Controller Module R12CCPU-V all versions 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.

03 Nov 2021, 01:15

Type Values Removed Values Added
Summary Uncontrolled resource consumption in MELSEC iQ-R series C Controller Module R12CCPU-V all versions 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. Uncontrolled resource consumption in MELSEC iQ-R series C Controller Module R12CCPU-V all versions 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.

15 Oct 2021, 17:49

Type Values Removed Values Added
CWE CWE-400
CPE cpe:2.3:o:mitsubishielectric:r12ccpu-v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r12ccpu-v:-:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 5.9
References (MISC) https://us-cert.cisa.gov/ics/advisories/icsa-21-280-04 - (MISC) https://us-cert.cisa.gov/ics/advisories/icsa-21-280-04 - Third Party Advisory, US Government Resource
References (MISC) https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-015_en.pdf - (MISC) https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-015_en.pdf - Vendor Advisory
References (MISC) https://jvn.jp/vu/JVNVU94914666/index.html - (MISC) https://jvn.jp/vu/JVNVU94914666/index.html - Third Party Advisory

08 Oct 2021, 17:44

Type Values Removed Values Added
New CVE
Information

Published : 2021-10-08 17:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-20600

Mitre link : CVE-2021-20600

CVE.ORG link : CVE-2021-20600

JSON object : View

Products Affected

mitsubishielectric

  • r12ccpu-v
  • r12ccpu-v_firmware
CWE
CWE-400

Uncontrolled Resource Consumption