CVE-2025-52906
Published: 24 September 2025
Summary
CVE-2025-52906 is a critical-severity OS Command Injection (CWE-78) vulnerability in Totolink X6000R Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 24.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
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
Requires implementation of input validation mechanisms at entry points to neutralize special elements and directly prevent OS command injection attacks like this CVE.
Mandates identification, reporting, and correction of system flaws, enabling timely firmware patching to remediate the specific improper neutralization vulnerability.
Enforces least privilege for processes, limiting the scope and impact of arbitrary OS commands executed via injection on the compromised router.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
OS Command Injection vulnerability in TOTOLINK X6000R router web interface enables exploitation of public-facing application (T1190) for arbitrary command execution on network device CLI (T1059.008).
NVD Description
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in TOTOLINK X6000R allows OS Command Injection.This issue affects X6000R: through V9.4.0cu.1360_B20241207.
Deeper analysisAI
CVE-2025-52906 is an Improper Neutralization of Special Elements used in an OS Command, classified as an OS Command Injection vulnerability (CWE-78), affecting the TOTOLINK X6000R router. This flaw enables attackers to inject and execute arbitrary operating system commands. The issue impacts X6000R firmware versions through V9.4.0cu.1360_B20241207 and was published on 2025-09-24.
With a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), the vulnerability is exploitable remotely over the network by unauthenticated attackers with low complexity and no user interaction required. Successful exploitation grants attackers the ability to execute arbitrary OS commands on the device, resulting in high impacts to confidentiality, integrity, and availability, potentially leading to full compromise of the router.
Advisories and mitigation guidance are available in the Palo Alto Networks disclosure at https://github.com/PaloAltoNetworks/u42-vulnerability-disclosures/blob/main/2025/PANW-2025-0002/PANW-2025-0002.md and on the TOTOLINK vendor site at https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/247/ids/36.html, which likely includes firmware patches addressing the issue.
Details
- CWE(s)