CVE-2025-41729 DoS via Modbus Read Command
An unauthenticated remote attacker can cause a denial of service on Janitza UMG 96-PA devices by sending a specially crafted Modbus read command.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-41729?
CVE-2025-41729 is a high-severity denial of service vulnerability in Janitza UMG 96-PA, published on 24 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An unauthenticated remote attacker can send a specially crafted Modbus read command to the device which leads to a denial of service.
Weakness: CWE-1287
Which versions are affected by CVE-2025-41729?
How do I fix CVE-2025-41729?
No fix has been published for CVE-2025-41729 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-41729 being exploited?
There is no known exploitation of CVE-2025-41729 in the wild and no public exploit code.
Sources
Also known as GHSA-cqgh-jj7h-j2hc.