CVE-2025-41720 Sauter: Arbitrary File Upload
A low-privileged attacker can upload arbitrary files to Sauter building automation devices by bypassing extension checks, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-41720?
CVE-2025-41720 is a medium-severity vulnerability in Sauter EY-modulo 5 ecos 5 ecos504/505, published on 22 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A low privileged remote attacker can upload arbitrary data masked as a png file to the affected device using the webserver API because only the file extension is verified.
Weakness: CWE-646
Which versions are affected by CVE-2025-41720?
How do I fix CVE-2025-41720?
No fix has been published for CVE-2025-41720 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-41720 being exploited?
There is no known exploitation of CVE-2025-41720 in the wild and no public exploit code.
Sources
Also known as GHSA-j942-4f9w-rfqh.