EG4 Electronics EG4 Inverters Observable Discrepancy
Priority LOW 30CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-203.
Summary
The public-facing product registration endpoint server responds differently depending on whether the S/N is valid and unregistered, valid but already registered, or does not exist in the database. Combined with the fact that serial numbers are sequentially assigned, this allows an attacker to gain information on the product registration status of different S/Ns.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00331 26th 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
- No
- 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 |
|---|---|---|---|---|---|
| EG4 Electronics | EG4 12kPV | all versions | — | No fix listed | CNA |
| EG4 Electronics | EG4 18kPV | all versions | — | No fix listed | CNA |
| EG4 Electronics | EG4 Flex 21 | all versions | — | No fix listed | CNA |
| EG4 Electronics | EG4 Flex 18 | all versions | — | No fix listed | CNA |
| EG4 Electronics | EG4 6000XP | all versions | — | No fix listed | CNA |
| EG4 Electronics | EG4 12000XP | all versions | — | No fix listed | CNA |
| EG4 Electronics | EG4 GridBoss | all versions | — | No fix listed | CNA |
- EG4 12kPV VendorEG4 Electronics Affected all versions Fixed in — No fix listed CNA
- EG4 18kPV VendorEG4 Electronics Affected all versions Fixed in — No fix listed CNA
- EG4 Flex 21 VendorEG4 Electronics Affected all versions Fixed in — No fix listed CNA
- EG4 Flex 18 VendorEG4 Electronics Affected all versions Fixed in — No fix listed CNA
- EG4 6000XP VendorEG4 Electronics Affected all versions Fixed in — No fix listed CNA
- EG4 12000XP VendorEG4 Electronics Affected all versions Fixed in — No fix listed CNA
- EG4 GridBoss VendorEG4 Electronics Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-47872
- 2026-10-03 Alias added: GHSA-vp38-x48w-r4cx
References
More EG4 Electronics vulnerabilities
- TI-2025-29135 EG4 Electronics EG4 Inverters Improper Restriction of Excessive Authentication Attempts CVSS 4.0CRITICAL 9.2
- TI-2025-33464 EG4 Electronics EG4 Inverters Download of Code Without Integrity Check CVSS 4.0HIGH 8.6
- TI-2025-32681 EG4 Electronics EG4 Inverters Cleartext Transmission of Sensitive Information CVSS 4.0HIGH 7.5
Sources
- CVE-2025-47872 · CVE Program
- CVE-2025-47872 · NVD
- FIRST EPSS
- GHSA-vp38-x48w-r4cx · 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