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 7.4 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 18.1% 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).
Deeper analysis
A stack-based buffer overflow vulnerability, tracked as CVE-2025-7792, affects the Tenda FH451 router running firmware version 1.0.0.9. The flaw resides in the formSafeEmailFilter function of the /goform/SafeEmailFilter endpoint, where unsanitized input supplied to the page argument can overwrite the stack buffer. It is rated critical with a CVSS 4.0 score of 7.4 and is also associated with CWE-119 and CWE-121.
An authenticated remote attacker can trigger the flaw over the network without user interaction. Successful exploitation grants the ability to execute arbitrary code or crash the device, as the manipulation directly corrupts memory on the stack. Public proof-of-concept code demonstrating the attack has already been released.
The listed references consist of a detailed technical report and exploit on GitHub together with entries on VulDB; none of these sources describe vendor patches, firmware updates, or specific mitigation steps. The associated EPSS score has remained flat at 0.0157 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-21887
Vulnerability details
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.
- CWE(s)
Related Threats
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.
CVEs Like This One
Affected Assets
Mitigating Controls
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.