CVE intelligence and bounded remediation

CVE-2021-20601 — Mitsubishielectric Gt Softgot2000 security vulnerability

High CVSS 7.8

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.

Severity
High
CVSS
7.8 (2.0)
Published
2021-11-23
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-20

Affected products

  • mitsubishielectric / gt_softgot2000
  • mitsubishielectric / got_simple_gs2110-wtbd_firmware
  • mitsubishielectric / got_simple_gs2107-wtbd_firmware
  • mitsubishielectric / got2000_gt2104-rtbd_firmware
  • mitsubishielectric / got2000_gt2103-pmbd_firmware
  • mitsubishielectric / got2000_gt2103-pmbds_firmware

Showing 6 representative product identities from 50 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

General vulnerability remediation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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