HOMEVULNERABILITIESCVE-2023-6943
CRITICAL

CVE-2023-6943

CWE-470Published: January 30, 2024· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Mitsubishi Electric Corporation EZSocket versions 3.0 to 5.92, GT Designer3 Version1(GOT1000) versions 1.325P and prior, GT Designer3 Version1(GOT2000) versions 1.320J and prior, GX Works2 versions 1.11M to 1.626C, GX Works3 versions 1.106L and prior, MELSOFT Navigator versions 1.04E to 2.102G, MT Works2 versions 1.190Y and prior, MX Component versions 4.00A to 5.007H and MX OPC Server DA/UA all versions allows a remote unauthenticated attacker to execute a malicious code by RPC with a path to a malicious library while connected to the products.

NVD Source

Technical Analysis

CVE-2023-6943 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

mitsubishielectric10 product(s)
ezsocketfr configurator2got1000got2000gx works2gx works3mc works64melsoft navigatormt works2mx component
Source: NVD CPE · 10 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://jvn.jp/vu/JVNVU95103362
ADVISORYhttps://www.cisa.gov/news-events/ics-advisories/icsa-24-030-02
ADVISORYhttps://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-020_en.pdf
ADVISORYhttps://jvn.jp/vu/JVNVU95103362
ADVISORYhttps://www.cisa.gov/news-events/ics-advisories/icsa-24-030-02
ADVISORYhttps://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-020_en.pdf

All References (6)

→
https://jvn.jp/vu/JVNVU95103362Third Party Advisory
→
https://www.cisa.gov/news-events/ics-advisories/icsa-24-030-02Third Party Advisory · US Government Resource
→
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-020_en.pdfVendor Advisory
→
https://jvn.jp/vu/JVNVU95103362Third Party Advisory
→
https://www.cisa.gov/news-events/ics-advisories/icsa-24-030-02Third Party Advisory · US Government Resource
→
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-020_en.pdfVendor Advisory

Quick Facts

CVE IDCVE-2023-6943
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-470
CISA KEVNo
Affected1 vendor(s)
PublishedJan 30, 2024

Related CVEs (CWE-470)

CVE-2026-13772
9.9
CVE-2019-1003041
9.8
CVE-2024-0200
9.8
CVE-2024-6096
9.8
CVE-2019-1003040
9.8
CVE-2021-31522
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-6943 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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