Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric…
Priority LOW 38Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior allows a remote unauthenticated attacker to cause a DoS condition in GX Works2 by getting GX Works2 to read a tampered program file from a Mitsubishi Electric PLC by sending malicious crafted packets to tamper with the program file.
Why it matters now
EPSS 0.02884 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | GX Works2 | up to 1.606G | — | No fix listed | CNA |
- GX Works2 Vendor— Affected up to 1.606G Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mitsubishielectric:gx_works2:*:*:*:*:*:*:*:* | up to 1.606g | Vulnerable | Mitsubishi Electric Europe B.V. |
- cpe:2.3:a:mitsubishielectric:gx_works2:*:*:*:*:*:*:*:* Versions up to 1.606g Vulnerable ·Mitsubishi Electric Europe B.V.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20608
- 2026-10-03 Alias added: GHSA-jvfx-87xv-97xc
References
More Mitsubishi Electric Europe B.V. Gx Works2 vulnerabilities
- TI-2023-06346 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')… CVSS 3.1CRITICAL 9.8
- TI-2021-03821 Memory corruption in Mitsubishi Electric Corporation CPU Module Logging Configuration Tool CVSS 3.1CRITICAL 9.8
- TI-2021-03820 Heap-based buffer overflow in Mitsubishi Electric Corporation CPU Module Logging… CVSS 3.1CRITICAL 9.8
- TI-2020-11374 Mitsubishi Electric Factory Automation Products Path Traversal CVSS 3.1CRITICAL 9.8
- TI-2020-11372 Mitsubishi Electric Factory Automation Engineering Products Unquoted Search Path or Element CVSS 3.1CRITICAL 9.8
- TI-2020-11347 Mitsubishi Electric Multiple Factory Automation Engineering Software Products (Update A) - Permission Issues CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-20608 · CVE Program
- CVE-2021-20608 · NVD
- FIRST EPSS
- GHSA-jvfx-87xv-97xc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences