CVE-2025-63353 Weak cryptography in n/a
Attackers can predict default Wi-Fi passwords from SSIDs, allowing unauthorized network access to FiberHome GPON ONU 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-2025-63353?
CVE-2025-63353 is a critical vulnerability in n/a, published on 12 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in FiberHome GPON ONU HG6145F1 RP4423 allows the device's factory default Wi-Fi password (WPA/WPA2 pre-shared key) to be predicted from the SSID. The device generates default passwords using a deterministic algorithm that derives the router passphrase from the SSID, enabling an attacker who can observe the SSID to predict the default password without authentication or user interaction.
Weakness: CWE-284
Which versions are affected by CVE-2025-63353?
It affects 1 product.
Products include Fiberhome Hg6145f1 Firmware.
How do I fix CVE-2025-63353?
No fix has been published for CVE-2025-63353 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-63353 being exploited?
There is no known exploitation of CVE-2025-63353 in the wild and no public exploit code.
Public exploit code: 5 proofs of concept on GitHub.
Sources
Also known as GHSA-cg2x-c25f-6327.