CVE-2025-53520: EG4 Electronics EG4 12000xp

High severity, CVSS 8.8. EPSS: 0.2% chance of exploitation in the next 30 days.

The affected product allows firmware updates to be downloaded from EG4's website, transferred via USB dongles, or installed through EG4's Monitoring Center (remote, cloud-connected interface) or via a serial connection, and can install these files without integrity checks. The TTComp archive format used for the firmware is unencrypted and can be unpacked and altered without detection.

Affected products

• EG4 Electronics EG4 12000xp: any version
• EG4 Electronics EG4 12kpv: any version
• EG4 Electronics EG4 18kpv: any version
• EG4 Electronics EG4 6000xp: any version
• EG4 Electronics EG4 Flex 18: any version
• EG4 Electronics EG4 Flex 21: any version
• EG4 Electronics EG4 Gridboss: any version

Published 2025-08-08. Last modified 2026-06-17.