LiveActive security incident?Get immediate response
CVE Record

CVE-2020-5647: Improper access control vulnerability in TCP/IP function included in the firmware of GT14 Model of GOT 1000...

Improper access control vulnerability in TCP/IP function included in the firmware of GT14 Model of GOT 1000 series (GT1455-QTBDE CoreOS version ’05.65.00.BD’ and earlier, GT1450-QMBDE CoreOS version ’05.65.00.BD’ and earlier, GT1450-QLBDE CoreOS version ’05.65.00.BD’ and earlier, GT1455HS-QTBDE CoreOS version ’05.65.00.BD’ and earlier, and GT1450HS-QMBDE CoreOS version ’05.65.00.BD’ and earlier) allows a remote unauthenticated attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This vulnerability affects specific Mitsubishi Electric GT14 GOT 1000 operator panels. A remote unauthenticated attacker could disrupt the product's network functions or cause execution of a malicious program through a specially crafted packet. In industrial environments, that could affect visibility or control workflows tied to these panels.

Executive priority

Treat this as high priority for OT environments using the affected panels. The main business concern is unauthenticated remote disruption or malicious program execution against operator-interface equipment. Focus first on exposure reduction and vendor-guided remediation.

Technical view

CVE-2020-5647 is an improper access control issue in the TCP/IP firmware function of Mitsubishi Electric GT14 GOT 1000 series models running listed CoreOS versions 05.65.00.BD and earlier. The source bundle describes unauthenticated remote impact against network functions and possible malicious program execution via crafted packets.

Likely exposure

Exposure is limited to the named Mitsubishi Electric GT14 GOT 1000 models and CoreOS versions 05.65.00.BD and earlier. Risk is higher where those devices are reachable from plant networks, remote access paths, or untrusted segments.

Exploitation context

The bundle does not show CISA KEV listing or active exploitation evidence. It does describe remote unauthenticated attack conditions and serious operational impact, but does not provide CVSS details in the supplied data.

Researcher notes

Available evidence identifies product, version scope, weakness class, and remote unauthenticated impact. The supplied bundle lacks CVSS data, exploit-in-the-wild confirmation, and detailed remediation text, so validation should stay focused on asset/version matching and official vendor guidance.

Mitigation direction

  • Identify affected GT14 GOT 1000 models and CoreOS versions in asset inventory.
  • Review Mitsubishi Electric PSIRT advisory 2020-014 for vendor-approved fixes or mitigations.
  • Restrict access to affected device TCP/IP services to trusted industrial networks.
  • Remove internet or broadly routed access to affected operator panels.
  • Prioritize remediation where panels support critical operations or remote access paths exist.

Validation and detection

  • Confirm exact GOT model numbers against the affected model list.
  • Verify CoreOS version and compare it with 05.65.00.BD and earlier.
  • Check network paths that can reach affected device TCP/IP services.
  • Review remote access, firewall, and segmentation controls for these panels.
  • Document compensating controls if vendor remediation cannot be applied immediately.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2020-5647 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Mitsubishi Electric CorporationGT14 Model of GOT 1000 series(GT1455-QTBDE CoreOS version ’05.65.00.BD’ and earlier, GT1450-QMBDE CoreOS version ’05.65.00.BD’ and earlier, GT1450-QLBDE CoreOS version ’05.65.00.BD’ and earlier, GT1455HS-QTBDE CoreOS version ’05.65.00.BD’ and earlier, and GT1450HS-QMBDE CoreOS version ’05.65.00.BD’ and earlier)Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.