How severe is CVE-2024-9644?

CVE-2024-9644 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-9644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-9644?

CVE-2024-9644 affects Four-faith F3x36 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-9644?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-9644 have an EU (EUVD) identifier?

Yes. CVE-2024-9644 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-50379.

When was CVE-2024-9644 published?

CVE-2024-9644 was published on 2025-02-04 and last updated on 2026-06-17.

CVE-2024-9644

CVE-2024-9644 is a critical-severity vulnerability in Four-faith F3x36 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-50379
Weakness: CWE-306
Affected product: Four-faith F3x36 Firmware
Published: 2025-02-04
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2024-9644?: CVE-2024-9644 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-9644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-9644?: CVE-2024-9644 affects Four-faith F3x36 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-9644?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-9644 have an EU (EUVD) identifier?: Yes. CVE-2024-9644 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-50379.
When was CVE-2024-9644 published?: CVE-2024-9644 was published on 2025-02-04 and last updated on 2026-06-17.

References

https://vulncheck.com/advisories/four-faith-hidden-api

Affected products (1)

cpe:2.3:o:four-faith:f3x36_firmware:2.0:*:*:*:*:*:*:*

More vulnerabilities in Four-faith F3x36 Firmware

CVE-2024-9643 — Critical (CVSS 9.8): The Four-Faith F3x36 router using firmware v2.0.0 is vulnerable to authentication bypass due to hard-coded credentials…
CVE-2024-12856 — High (CVSS 7.2): The Four-Faith router models F3x24 and F3x36 are affected by an operating system (OS) command injection vulnerability.…

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