CVE-2021-20601 Information

Description

Improper input validation vulnerability in GOT2000 series GT27 model all versions GOT2000 series GT25 model all versions GOT2000 series GT23 model all versions GOT2000 series GT21 model all versions GOT SIMPLE series GS21 model all versions and GT SoftGOT2000 all versions allows an remote unauthenticated attacker to write a value that exceeds the configured input range limit by sending a malicious packet to rewrite the device value. As a result the system operation may be affected such as malfunction.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://jvn.jp/vu/JVNVU98072504 https://us-cert.cisa.gov/ics/advisories/icsa-21-320-02 https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2021-018.pdf

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5