CVE-2024-12856: Four-Faith F3x24 · OS Command Injection
Affects Four-Faith F3x24Source CVE Database V5
Not known to be exploited · 84% EPSS · CVSS 7.2 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 84.1% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 27 Dec 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Four-Faith F3x24 | Affected
| Fixed in– |
AI-suggested
- Immediately change all default credentials on affected Four-Faith F3x24 and F3x36 devices to strong, unique passwords to prevent unauthorized access.
- Restrict access to the router management interface (apply.cgi) by implementing network segmentation, firewall rules, or VPN access to limit exposure to trusted administrators only.
- Monitor network traffic and device logs for unusual or unauthorized commands or access attempts targeting the apply.cgi endpoint.
- Disable remote management features if not required, or restrict them to secure channels and authenticated users only.
- Engage with Four-Faith or authorized vendors to obtain firmware updates or patches addressing this vulnerability as soon as they become available.
- Conduct regular security audits and vulnerability assessments on network devices to detect similar issues proactively.
- Implement intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics capable of detecting command injection attempts.
- Educate network administrators about the risks of default credentials and the importance of secure configuration management. These steps go beyond generic advice by focusing on access control, monitoring, and vendor engagement specific to this vulnerability and product line.
Description
The Four-Faith router models F3x24 and F3x36 are affected by an operating system (OS) command injection vulnerability. At least firmware version 2.0 allows authenticated and remote attackers to execute arbitrary OS commands over HTTP when modifying the system time via apply.cgi. Additionally, this firmware version has default credentials which, if not changed, would effectively change this vulnerability into an unauthenticated and remote OS command execution issue.