CVE-2025-12271
Published: 27 October 2025
Summary
CVE-2025-12271 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda Ch22 Firmware. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 37.5% 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 the 'page' argument in /goform/RouteStatic to prevent buffer overflow from invalid or oversized inputs.
Enforces restrictions such as maximum length on the 'page' argument to block buffer overflow exploitation in fromRouteStatic function.
Provides memory protections like stack canaries and ASLR to mitigate successful buffer overflow exploitation in the vulnerable firmware function.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unauthenticated remote buffer overflow in router's web interface (/goform/RouteStatic) enables DoS via application exploitation (T1499.004), initial access by exploiting public-facing application (T1190), and RCE for privilege escalation (T1068).
NVD Description
A vulnerability was identified in Tenda CH22 1.0.0.1. This affects the function fromRouteStatic of the file /goform/RouteStatic. Such manipulation of the argument page leads to buffer overflow. The attack can be launched remotely. The exploit is publicly available and might…
more
be used.
Deeper analysisAI
CVE-2025-12271 is a buffer overflow vulnerability (CWE-119, CWE-120) in Tenda CH22 firmware version 1.0.0.1. The flaw affects the fromRouteStatic function in the /goform/RouteStatic file, where manipulation of the "page" argument triggers the overflow. Published on 2025-10-27, 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).
An attacker with low privileges can exploit this remotely over the network with low complexity and no user interaction. Successful exploitation grants high-impact access, enabling full compromise of confidentiality, integrity, and availability on the affected device.
Advisories and references include VulDB entries (ctiid.329943, id.329943, submit.674153) detailing the issue, a GitHub repository (QIU-DIE/CVE/issues/20) with a publicly available exploit, and the Tenda website (tenda.com.cn). No specific patches or mitigations are detailed in the provided information.
Details
- CWE(s)