Input validation error in Mitsubishi Electric products - CVE-2022-40265

Vulnerability identifier: #VU69826

CSH Severity: High

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-40265

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

MELSEC iQ-R 04 (EN) CPU
MELSEC iQ-R 08 (EN) CPU
MELSEC iQ-R 16 (EN) CPU
MELSEC iQ-R 32 (EN) CPU
MELSEC iQ-R 120 (EN) CPU
MELSEC iQ-R RJ71EN71

Install updates from vendor's website.

MELSEC iQ-R 04 (EN) CPU - update to 66
MELSEC iQ-R 08 (EN) CPU - update to 66
MELSEC iQ-R 16 (EN) CPU - update to 66
MELSEC iQ-R 32 (EN) CPU - update to 66
MELSEC iQ-R 120 (EN) CPU - update to 66
MELSEC iQ-R RJ71EN71 - update to 66

• https://jvn.jp/vu/JVNVU94702422
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-017_en.pdf

• Denial of service in Mitsubishi Electric MELSEC iQ-R Series