CVE-2025-53520

EG4 Electronics EG4 Inverters Download of Code Without Integrity Check

CVSS 8.6 HIGHEPSS 0.2%CWE-494

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.6EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

08 Aug 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

EG4 Electronics · EG4 12000XP EG4 Electronics · EG4 12kPV EG4 Electronics · EG4 18kPV EG4 Electronics · EG4 6000XP EG4 Electronics · EG4 Flex 18 EG4 Electronics · EG4 Flex 21 EG4 Electronics · EG4 GridBoss

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References

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