CVE-2025-15253
Published: 30 December 2025
Summary
CVE-2025-15253 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda M3 Firmware. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 33.3th percentile by exploit likelihood (below the median); 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
SI-2 requires timely remediation of identified flaws, directly addressing this stack-based buffer overflow by applying firmware patches from Tenda.
SI-10 enforces validation of inputs like the cmdinput argument, preventing buffer overflows by checking length and format before processing.
SI-16 provides memory protections such as stack guards and non-executable memory, blocking arbitrary code execution from the buffer overflow exploit.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability is a buffer overflow in the web management interface (/goform/exeCommand) of a public-facing router, enabling remote arbitrary code execution, directly mapping to exploitation of public-facing applications.
NVD Description
A vulnerability has been found in Tenda M3 1.0.0.13(4903). The impacted element is an unknown function of the file /goform/exeCommand. Such manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has…
more
been disclosed to the public and may be used.
Deeper analysisAI
CVE-2025-15253 is a stack-based buffer overflow vulnerability affecting the Tenda M3 router on firmware version 1.0.0.13(4903). The flaw exists in an unknown function of the /goform/exeCommand file, where manipulation of the cmdinput argument triggers the overflow. Published on 2025-12-30, 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 maps to CWE-119 and CWE-121.
The vulnerability enables remote exploitation by low-privileged users (PR:L) over the network, requiring low complexity and no user interaction. Attackers can achieve high impacts on confidentiality, integrity, and availability, potentially leading to arbitrary code execution via the buffer overflow.
Advisories on VulDB (ctiid.338643, id.338643, submit.725498) document the issue, with an exploit publicly disclosed on GitHub at dwBruijn/CVEs/blob/main/Tenda/execCommand.md, which may be usable. The Tenda vendor site at tenda.com.cn should be consulted for any patches or mitigation guidance.
Details
- CWE(s)