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No exploitation reportedFix available

CVE-2023-6943

No exploitation reported by the sources we read.

  • Published2024-01-30
  • WeaknessCWE-470

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2024-01-3009:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-6943?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-6943?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Mitsubishielectric ezsocket
BranchAffectedFixed in
3.0+≥ 3.0no fix published
Mitsubishielectric fr configurator2
BranchAffectedFixed in
—all versionsno fix published
Mitsubishielectric got1000
BranchAffectedFixed in
—all versionsno fix published

7 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-24-030-02 CISA9 known affected

    Mitsubishi Electric FA Engineering Software Products (Update D)

    Mitsubishi Electric EZSocket: >=3.0|<5.92 · Mitsubishi Electric GT Designer3 Version1(GOT1000): <=1.325P · Mitsubishi Electric GT Designer3 Version1(GOT2000): <=1.320J · +6 more

Full record on NVD

Fix

  1. Vendor fix CISA ICSA-24-030-02 · 1 productEZSocket: Download version 5.A or later.
  2. Vendor fix CISA ICSA-24-030-02 · 1 productGX Works2: Download version 1.630G or later.
  3. Vendor fix CISA ICSA-24-030-02 · 1 productGX Works3: Download version 1.110Q or later.
  4. Vendor fix CISA ICSA-24-030-02 · 1 productMELSOFT Navigator: Download version 2.106L or later.
  5. Vendor fix CISA ICSA-24-030-02 · 1 productMT Works2: Download version 1.195D or later.
  6. Vendor fix CISA ICSA-24-030-02 · 1 productMX Component: Download version 5.008J or later.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2024-02-06
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.19.8read 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • CNAweakness (CWE)CWE-470read 2026-10-23
  • FIRST EPSSEPSS score2.1 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2024-01-30
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2023-6943?

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.

Is CVE-2023-6943 actively exploited?

Active exploitation of CVE-2023-6943 has not been confirmed. Its EPSS score was 2.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-6943?

CVE-2023-6943 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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