Signal Handler Race Condition vulnerability in Mitsubishi Electric India GC-ENET-COM whose first 2 digits of 11-digit serial number of unit are "16" allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition in Ethernet communication by sending a large number of specially crafted packets to any UDP port when GC-ENET-COM is configured as a Modbus TCP Server. The communication resumes only when the power of the main unit is turned off and on or when the GC-ENET-COM is hot-swapped from the main unit.
Conclusion & alert: CVE-2023-1285 is rated Moderate Risk (43.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.17%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-04-15 | 0.36% | 0.17% | -0.19% |
| 2 | 2026-01-07 | 0.29% | 0.36% | +0.07% |
| 3 | 2025-11-21 | — | 0.29% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.9 | 3.1 | MEDIUM |
|
2.2 | 3.6 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mitsubishielectric | gc-enet-com_firmware | — | cpe:2.3:o:mitsubishielectric:gc-enet-com_firmware:-:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://mitsubishielectric.in/fa/cnc-pdf/DoS_in_Ethernet_Communication_Extension_Unit_GC_ENET_COM_of_GOC35_Series.pdf | Vendor Advisory |
| https://www.cisa.gov/news-events/ics-advisories/icsa-23-103-15 | Third Party Advisory US Government Resource |