CVE-2025-53520 EG4 Electronics EG4 Inverters Download of Code Without Integrity Check
Attackers can install malicious firmware on EG4 inverters because the system lacks integrity checks for update files, allowing arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-53520?
CVE-2025-53520 is a high-severity code injection vulnerability in EG4 12000XP, published on 8 Aug 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-494
Which versions are affected by CVE-2025-53520?
How do I fix CVE-2025-53520?
No fix has been published for CVE-2025-53520 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-53520 being exploited?
There is no known exploitation of CVE-2025-53520 in the wild and no public exploit code.
Sources
Also known as GHSA-w46c-9jvj-8r29.