CVE-2025-70520 Missing authorization in n/a
Unauthenticated attackers can access sensitive device resources and logs via the websocket handler due to missing authentication checks.
- 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-2025-70520?
CVE-2025-70520 is a critical missing authorization vulnerability in n/a, published on 7 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The websocket handler of Fanvil x7a firmware version 2.6.0.1182 does not enforce proper authentication restrictions against sessionless users. The lack of restrictions grants anyone the ability to view any device resources such as operational logs or perform diagnostic requests.
Weakness: CWE-306
Which versions are affected by CVE-2025-70520?
How do I fix CVE-2025-70520?
No fix has been published for CVE-2025-70520 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-2025-70520 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-70520 exists.
Sources
Also known as GHSA-r46f-86rj-p44j.