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HIGH · 7.5

CVE-2020-5652

Uncontrolled resource consumption vulnerability in Ethernet Port on MELSEC iQ-R, Q and L series CPU modules (R 00/01/02 CPU firmware versions '20' and earlier, R 04/08/16/32/120 (EN) CPU firmware vers...

Vulnerability Description

Uncontrolled resource consumption vulnerability in Ethernet Port on MELSEC iQ-R, Q and L series CPU modules (R 00/01/02 CPU firmware versions '20' and earlier, R 04/08/16/32/120 (EN) CPU firmware versions '52' and earlier, R 08/16/32/120 SFCPU firmware versions '22' and earlier, R 08/16/32/120 PCPU all versions, R 08/16/32/120 PSFCPU all versions, R 16/32/64 MTCPU all versions, Q03 UDECPU, Q 04/06/10/13/20/26/50/100 UDEHCPU serial number '22081' and earlier , Q 03/04/06/13/26 UDVCPU serial number '22031' and earlier, Q 04/06/13/26 UDPVCPU serial number '22031' and earlier, Q 172/173 DCPU all versions, Q 172/173 DSCPU all versions, Q 170 MCPU all versions, Q 170 MSCPU all versions, L 02/06/26 CPU (-P) and L 26 CPU - (P) BT all versions) allows a remote unauthenticated attacker to stop the Ethernet communication functions of the products via a specially crafted packet, which may lead to a denial of service (DoS) condition .

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
MitsubishielectricMelsec Q-Q04Udpvcpu Firmware22031
MitsubishielectricMelsec Q-Q04Udpvcpu-
MitsubishielectricMelsec Q-Q06Udpvcpu Firmware22031
MitsubishielectricMelsec Q-Q06Udpvcpu-
MitsubishielectricMelsec Q-Q13Udpvcpu Firmware22031
MitsubishielectricMelsec Q-Q13Udpvcpu-
MitsubishielectricMelsec Q-Q26Udpvcpu Firmware22031
MitsubishielectricMelsec Q-Q26Udpvcpu-
MitsubishielectricMelsec Q-Q03Udvcpu Firmware22031
MitsubishielectricMelsec Q-Q03Udvcpu-
MitsubishielectricMelsec Q-Q04Udvcpu Firmware22031
MitsubishielectricMelsec Q-Q04Udvcpu-
MitsubishielectricMelsec Q-Q13Udvcpu Firmware22031
MitsubishielectricMelsec Q-Q13Udvcpu-
MitsubishielectricMelsec Q-Q26Udvcpu Firmware22031
MitsubishielectricMelsec Q-Q26Udvcpu-
MitsubishielectricMelsec Q-Q03Udecpu Firmware22081
MitsubishielectricMelsec Q-Q03Udecpu-
MitsubishielectricMelsec Q-Q04Udehcpu Firmware22081
MitsubishielectricMelsec Q-Q04Udehcpu-

Related Weaknesses (CWE)

CWE-400

References

FAQ

What is CVE-2020-5652?

CVE-2020-5652 is a vulnerability with a CVSS score of 7.5 (HIGH). Uncontrolled resource consumption vulnerability in Ethernet Port on MELSEC iQ-R, Q and L series CPU modules (R 00/01/02 CPU firmware versions '20' and earlier, R 04/08/16/32/120 (EN) CPU firmware vers...

How severe is CVE-2020-5652?

CVE-2020-5652 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-5652?

Check the references section above for vendor advisories and patch information. Affected products include: Mitsubishielectric Melsec Q-Q04Udpvcpu Firmware, Mitsubishielectric Melsec Q-Q04Udpvcpu, Mitsubishielectric Melsec Q-Q06Udpvcpu Firmware, Mitsubishielectric Melsec Q-Q06Udpvcpu, Mitsubishielectric Melsec Q-Q13Udpvcpu Firmware.