CVE-2025-41705 Phoenix Contact: WebSocket Message Interception Leaks Webfrontend Credentials
A man-in-the-middle attacker can intercept WebSocket messages to steal Webfrontend login credentials from Phoenix Contact UPS devices.
- 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-2025-41705?
CVE-2025-41705 is a medium-severity vulnerability in Phoenix Contact QUINT4-UPS/24DC/24DC/10/EIP, published on 14 Oct 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
An unauthenticated remote attacker (MITM) can intercept the websocket messages to gain access to the login credentials for the Webfrontend.
Weakness: CWE-523
Which versions are affected by CVE-2025-41705?
How do I fix CVE-2025-41705?
No fix has been published for CVE-2025-41705 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-41705 being exploited?
There is no known exploitation of CVE-2025-41705 in the wild and no public exploit code.
Sources
Also known as GHSA-99cx-g736-3whp.