CVE-2024-12856 | Four-Faith Industrial Router adjust_sys_time OS Command Injection

Exp

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.

Published: 2024-12-27 Last update: 2025-09-25 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-12856 is rated High Exploit Risk (81.8/100): CVSS High severity, with high exploitation likelihood (EPSS 77.31%, 99th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +3.40% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-12856

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-12856

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-09 73.91% 77.31% +3.40%
2 2026-06-05 70.18% 73.91% +3.73%
3 2026-05-31 — 70.18% —

Full EPSS history (64 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-12856

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.9 [email protected]

Weakness enumeration for CVE-2024-12856

Affected software / configurations for CVE-2024-12856

Vendor Product Version Raw CPE
four-faith f3x36_firmware 2.0 cpe:2.3:o:four-faith:f3x36_firmware:2.0:*:*:*:*:*:*:*
four-faith f3x24_firmware 2.0 cpe:2.3:o:four-faith:f3x24_firmware:2.0:*:*:*:*:*:*:*

References for CVE-2024-12856

cvelogic Threat Intelligence