Denial-of-Service Vulnerability in Ethernet port on MELSEC iQ-F Ethernet Module and EtherNet/IP Module
Priority MEDIUM 40CWE-1287Published · 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 · CNA. Fix status from CNA.
Summary
Improper Validation of Specified Type of Input vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET versions 1.100 to 1.200 and FX5-ENET/IP versions 1.100 to 1.104 allows a remote attacker to cause a Denial of Service condition in Ethernet communication of the products by sending specially crafted SLMP packets.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00678 52nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
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 | MELSEC iQ-F Series FX5-ENET | 1.100 to 1.200 | — | No fix listed | CNA |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5-ENET/IP | 1.100 to 1.104 | — | No fix listed | CNA |
- MELSEC iQ-F Series FX5-ENET VendorMitsubishi Electric Corporation Affected 1.100 to 1.200 Fixed in — No fix listed CNA
- MELSEC iQ-F Series FX5-ENET/IP VendorMitsubishi Electric Corporation Affected 1.100 to 1.104 Fixed in — No fix listed CNA
CPE names CISA-ADP · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:mitsubishi_electric:melsec_iq-f_series_fx5-enet:*:*:*:*:*:*:*:* | — | — | Mitsubishi Electric Corporation |
| cpe:2.3:h:mitsubishi_electric:melsec_iq-f_series_fx5-enet_ip:*:*:*:*:*:*:*:* | — | — | Mitsubishi Electric Corporation |
- cpe:2.3:h:mitsubishi_electric:melsec_iq-f_series_fx5-enet:*:*:*:*:*:*:*:* Versions — — ·Mitsubishi Electric Corporation
- cpe:2.3:h:mitsubishi_electric:melsec_iq-f_series_fx5-enet_ip:*:*:*:*:*:*:*:* Versions — — ·Mitsubishi Electric Corporation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-8403
- 2026-10-03 Alias added: GHSA-9v3g-gwx4-px97
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-2024-8403 · CVE Program
- CVE-2024-8403 · NVD
- FIRST EPSS
- GHSA-9v3g-gwx4-px97 · 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