CRITICAL

CVE-2025-63353

CVSS v3

9.8

CRITICAL

EPSS Score

1.3 %

exploit probability, as of 2026-10-18

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2025-63353 yet.

Full record on NVD

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.

Technical details

Published: 2025-11-12

Frequently asked questions

What is CVE-2025-63353?

Is CVE-2025-63353 actively exploited?

Active exploitation of CVE-2025-63353 has not been confirmed. Its EPSS score was 1.3% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-63353?

CVE-2025-63353 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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