Auth bypass in Four-Faith F3x36
CVE-2024-9644
The Four-Faith F3x36 router using firmware v2.0.0 is vulnerable to an authentication bypass vulnerability in the administrative web server. Authentication is not enforced on some administrative functionality when using the "bapply.cgi" endpoint instead of the normal "apply.cgi" endpoint. A remote and unauthenticated can use this vulnerability to modify settings or chain with existing authenticated vulnerabilities.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (50.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Four-Faith F3x36 — versions 2.0.0
- Four-Faith F3x36 Firmware — versions 2.0
Weakness classification (CWE)
References
- vulncheck.com/advisories/four-faith-hidden-api (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2024-9644?
- CVE-2024-9644 is a critical-severity vulnerability in Four-Faith F3x36, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2025-02-04.
- How severe is CVE-2024-9644?
- Critical severity. CVSS v3 base score is 9.8 out of 10.