CVE-2025-7792
Published: 18 July 2025
Summary
CVE-2025-7792 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda Fh451 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 31.7% 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 validates inputs like the 'page' argument in the /goform/SafeEmailFilter endpoint to prevent stack-based buffer overflows from malformed or oversized data.
Implements memory protections such as stack canaries, ASLR, and non-executable stacks to mitigate exploitation of the stack-based buffer overflow vulnerability.
Ensures timely flaw remediation through firmware updates to address the specific buffer overflow in the formSafeEmailFilter function.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct remote exploitation of a stack buffer overflow in the device's public web management interface (/goform/SafeEmailFilter) enabling arbitrary code execution.
NVD Description
A vulnerability was found in Tenda FH451 1.0.0.9. It has been rated as critical. This issue affects the function formSafeEmailFilter of the file /goform/SafeEmailFilter. The manipulation of the argument page leads to stack-based buffer overflow. The attack may be initiated…
more
remotely. The exploit has been disclosed to the public and may be used.
Deeper analysisAI
CVE-2025-7792 is a critical stack-based buffer overflow vulnerability (CVSS 3.1 score of 8.8) in the Tenda FH451 router running firmware version 1.0.0.9. The issue resides in the formSafeEmailFilter function within the /goform/SafeEmailFilter endpoint, where manipulation of the "page" argument triggers the overflow. It is associated with CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-121 (Stack-based Buffer Overflow).
The vulnerability can be exploited remotely by an attacker with low privileges (PR:L), requiring no user interaction (UI:N) and low attack complexity (AC:L) over the network (AV:N). Successful exploitation grants high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H), potentially allowing arbitrary code execution on the affected device.
Advisories documented on VulDB (ctiid.316853, id.316853) and a GitHub repository (panda666-888/vuls) provide details on the vulnerability, including a publicly disclosed proof-of-concept exploit targeting the formSafeEmailFilter endpoint. No vendor patches or specific mitigations are referenced in the available sources.
The exploit has been publicly disclosed, increasing the risk of real-world attacks against unpatched Tenda FH451 devices.
Details
- CWE(s)