CVE-2025-41664 Improper Permission Handling Enables Unauthorized Access to Firmware and Certificates
A low-privileged remote attacker can access firmware and certificates due to improper permission handling, enabling privilege escalation and firmware modification.
- 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-2025-41664?
CVE-2025-41664 is a high-severity missing authorization vulnerability in WAGO Coupler 0750-0362, published on 8 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A low-privileged remote attacker could gain unauthorized access to critical resources, such as firmware and certificates, due to improper permission handling during the runtime of services (e.g., FTP/SFTP). This access could allow the attacker to escalate privileges and modify firmware.
Weakness: CWE-732
Which versions are affected by CVE-2025-41664?
How do I fix CVE-2025-41664?
No fix has been published for CVE-2025-41664 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-41664 being exploited?
There is no known exploitation of CVE-2025-41664 in the wild and no public exploit code.
Sources
Also known as GHSA-fr5v-wr5v-rf59.