CVE-2025-63353

CRITICAL
Published Nov 12, 2025 Modified Dec 31, 2025 CWE-284

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.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-284 CWE-284

Affected Products

Vendor Product
fiberhome hg6145f1_firmware
fiberhome hg6145f1

References

Frequently Asked Questions

What is CVE-2025-63353? +
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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-63353? +
CVE-2025-63353 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2025-63353? +
CVE-2025-63353 affects products from fiberhome, specifically: hg6145f1, hg6145f1_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-63353? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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