CVE-2025-7550
Published: 13 July 2025
Summary
CVE-2025-7550 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda Fh1201 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 18.4% 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-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly mitigates the CVE by requiring timely remediation of the known stack-based buffer overflow flaw through firmware patching or updates.
Prevents exploitation by enforcing input validation on the 'dips' argument in the /goform/GstDhcpSetSer endpoint to block buffer overflow triggers.
Mitigates stack-based buffer overflow exploitation via memory protections like stack canaries and address space layout randomization in the affected firmware.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stack-based buffer overflow in the router's web interface (/goform/GstDhcpSetSer) enables remote code execution via exploitation of a public-facing application.
NVD Description
A vulnerability was found in Tenda FH1201 1.2.0.14(408). It has been classified as critical. Affected is the function fromGstDhcpSetSer of the file /goform/GstDhcpSetSer. The manipulation of the argument dips leads to stack-based buffer overflow. It is possible to launch the…
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attack remotely. The exploit has been disclosed to the public and may be used.
Deeper analysisAI
CVE-2025-7550 is a critical stack-based buffer overflow vulnerability (CWE-119, CWE-121) in Tenda FH1201 firmware version 1.2.0.14(408). The flaw affects the fromGstDhcpSetSer function in the /goform/GstDhcpSetSer file, where manipulation of the "dips" argument triggers the overflow. 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) and was published on 2025-07-13.
Attackers with low privileges, such as authenticated users on the local network, can exploit this remotely with low complexity and no user interaction required. Successful exploitation enables high-impact confidentiality, integrity, and availability violations, potentially leading to arbitrary code execution and full router compromise.
Advisories on VulDB and a GitHub repository document the vulnerability, including a publicly disclosed proof-of-concept exploit. No vendor patches or specific mitigation guidance are detailed in the available information; practitioners should monitor vendor updates and restrict access to the affected endpoint.
Details
- CWE(s)