CVE-2025-14672 gmg137 snap7-rs s7_micro_client.cpp opWriteArea heap-based overflow
A heap-based buffer overflow in the snap7-rs library allows remote attackers to execute arbitrary code or cause denial of service.
- 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-2025-14672?
CVE-2025-14672 is a medium-severity memory corruption vulnerability in gmg137 snap7-rs, published on 14 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw has been found in gmg137 snap7-rs up to 1.142.1. This impacts the function TSnap7MicroClient::opWriteArea of the file s7_micro_client.cpp. Executing a manipulation can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.
Which versions are affected by CVE-2025-14672?
It affects 1 product.
Products include Gmg137 Snap7-Rs.
How do I fix CVE-2025-14672?
No fix has been published for CVE-2025-14672 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-14672 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14672 exists.
Other vulnerabilities in gmg137 snap7-rs
Sources
Also known as GHSA-52cp-m58w-wp9x.