CVE-2025-56109
Published: 11 December 2025
Summary
CVE-2025-56109 is a high-severity OS Command Injection (CWE-78) vulnerability in Ruijie Rg-Bcr860 Firmware. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 23.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly prevents OS command injection by requiring validation and sanitization of crafted POST request inputs to the action_wireless function in wireless.lua.
Mitigates the specific vulnerability through timely identification, testing, and installation of patches for the flaw in /usr/lib/lua/luci/control/admin/wireless.lua.
Limits damage from command injection by enforcing least privilege on low-privilege authenticated users accessing the vulnerable wireless administration endpoint.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CVE enables exploitation of public-facing web application (T1190) via crafted POST request leading to OS command injection, directly facilitating arbitrary command execution on network device CLI (T1059.008).
NVD Description
OS Command Injection vulnerability in Ruijie RG-BCR RG-BCR860 allowing attackers to execute arbitrary commands via a crafted POST request to the action_wireless in file /usr/lib/lua/luci/control/admin/wireless.lua.
Deeper analysisAI
CVE-2025-56109 is an OS Command Injection vulnerability (CWE-78) in the Ruijie RG-BCR RG-BCR860 device. The flaw exists in the action_wireless function of the file /usr/lib/lua/luci/control/admin/wireless.lua, enabling attackers to execute arbitrary operating system commands through a crafted POST request. Published on 2025-12-11, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
The vulnerability can be exploited by attackers with low privileges, such as authenticated users with minimal access rights on the affected device. Exploitation occurs remotely over the network with low complexity and no user interaction required. Successful attacks allow arbitrary command execution, resulting in high impacts to confidentiality, integrity, and availability, potentially leading to full device compromise.
Mitigation guidance and additional details are provided in the following advisories and reports: https://1drv.ms/f/c/12406a392c92914b/EqEQemupso9DldgG-EcUI8IBLpEWP_S-f6vpeUtYztYYCg?e=gX4A10, https://1drv.ms/t/c/12406a392c92914b/Eebxh85meOlFnvAANaOt7WgBy_WVGYtW6X8dzvZBZSenbw?e=aaqmPN, and https://github.com/flegoity/Ruijie-Multiple-Devices-Vulnerability-Reports-for-CVE/blob/main/CVE-2025-56109.md.
Details
- CWE(s)