CVE-2025-41769 Unauthenticated Buffer Overflow in PROFINET Service
Unauthenticated remote attackers can exploit a buffer overflow in the PROFINET service to execute arbitrary code or reboot affected Phoenix Contact devices.
- 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-2025-41769?
CVE-2025-41769 is a critical memory corruption vulnerability in Phoenix Contact AXC F 1152, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The device's PROFINET service is affected by a buffer overflow vulnerability that exists in the default configuration. An unauthenticated remote attacker could exploit this vulnerability to reboot the device or execute arbitrary code.
Weakness: CWE-120
Which versions are affected by CVE-2025-41769?
How do I fix CVE-2025-41769?
No fix has been published for CVE-2025-41769 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-2025-41769 being exploited?
There is no known exploitation of CVE-2025-41769 in the wild and no public exploit code.
Sources
Also known as GHSA-9v55-xwh5-8wv7.