Password Authentication Bypass Vulnerability in GX Works3 and Motion Control Setting
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Incorrect Implementation of Authentication Algorithm Vulnerability in Mitsubishi Electric GX Works3 and Motion Control Setting allows a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modifying part of the executable module in memory, and thereby may be able to view, tamper with, destroy, or delete control programs.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Mitsubishi Electric Corporation | GX Works3 | All versions | — | No fix listed | CNA |
| Mitsubishi Electric Corporation | Motion Control Setting | All versions | — | No fix listed | CNA |
- GX Works3 VendorMitsubishi Electric Corporation Affected All versions Fixed in — No fix listed CNA
- Motion Control Setting VendorMitsubishi Electric Corporation Affected All versions Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mitsubishielectric:gx_works3:*:*:*:*:*:*:*:* | — | — | Mitsubishi Electric Europe B.V. |
- cpe:2.3:a:mitsubishielectric:gx_works3:*:*:*:*:*:*:*:* Versions — — ·Mitsubishi Electric Europe B.V.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15688
- 2026-10-03 Alias added: GHSA-x4hf-m6gp-2m3x
- 2026-10-09 1 new reference · CNA
References
More Mitsubishi Electric Corporation vulnerabilities
- TI-2022-14737 Deserialization of untrusted data in Mitsubishi Electric Corporation GENESIS64 CVSS 3.1CRITICAL 9.8
- TI-2022-19113 Authentication Bypass Vulnerability in Web Server Function on MELSEC Series CVSS 3.1CRITICAL 9.1
- TI-2023-01345 Denial-of-Service and Remote Code Execution Vulnerability in MELSEC Series CPU module CVSS 3.1CRITICAL 10.0
- TI-2023-06346 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')… CVSS 3.1CRITICAL 9.8
- TI-2023-03131 Denial of Service (DoS) and Remote Code Execution Vulnerability in MITSUBISHI CNC Series CVSS 3.1CRITICAL 9.8
- TI-2021-03821 Memory corruption in Mitsubishi Electric Corporation CPU Module Logging Configuration Tool CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-15688 · CVE Program
- CVE-2026-15688 · NVD
- FIRST EPSS
- GHSA-x4hf-m6gp-2m3x · GitHub Advisory Database · CC BY 4.0
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