PT-2021-14: Integer Overflow Resulting in Reading and Writing Outside Memory Range Allocated to Device

FX5U© CPU and FX5UJ CPU modules

Severity level

Severity level: High
Impact: Integer Overflow Resulting in Reading and Writing Outside Memory Range Allocated to Device
Access Vector: Remote

CVSS v3.0
Base Score: 8,6
Vector: (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)

CVE-2022-25161

Vulnerability description:

The vulnerability of the FX5U© CPU and FX5UJ CPU modules of Mitsubishi Electric FA products is associated with to Integer Overflow in the DevOff_To_RealAddr procedure. Exploitation of the vulnerability allows an attacker to perform reading and writing outside of the allocated memory range.

Advisory status

15.12.2021 - Vendor gets vulnerability details
17.05.2022 - Security advisory publication date (<https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-004_en.pdf&gt;)

Credits

The vulnerability was detected by Anton Dorfman (Positive Technologies)