What’s Vulnerable › Vulnerabilities

CVE-2025-47872: EG4 Electronics EG4 Inverters Observable Discrepancy

• Severity: medium (CVSS 5.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-08 · updated 2026-06-17
• Weakness: CWE-203

Description

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.

Affected products

• EG4 Electronics EG4 12000XP: all versions
• EG4 Electronics EG4 12kPV: all versions
• EG4 Electronics EG4 18kPV: all versions
• EG4 Electronics EG4 6000XP: all versions
• EG4 Electronics EG4 Flex 18: all versions
• EG4 Electronics EG4 Flex 21: all versions
• EG4 Electronics EG4 GridBoss: all versions

References

• https://eg4electronics.com/contact/
• https://www.cisa.gov/news-events/ics-advisories/icsa-25-219-07

Get alerted when CVE-2025-47872 or the next vulnerability affects your stack