CVE-2025-12272
Published: 27 October 2025
Summary
CVE-2025-12272 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 Exploit Public-Facing Application (T1190); 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 mitigates the CVE by requiring timely remediation of the known buffer overflow flaw through firmware patching.
Prevents buffer overflows by enforcing validation of the exploitable 'page' argument in the /goform/addressNat endpoint.
Mitigates remote code execution from buffer overflows via memory protections like ASLR and non-executable stacks.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unauthenticated buffer overflow in public-facing router web interface (/goform/addressNat) enables remote exploitation of public-facing application (T1190) and application/system denial of service via crash (T1499.004); potential for RCE facilitates device compromise.
NVD Description
A security flaw has been discovered in Tenda CH22 1.0.0.1. This impacts the function fromAddressNat of the file /goform/addressNat. Performing a manipulation of the argument page results in buffer overflow. The attack may be initiated remotely. The exploit has been…
more
released to the public and may be used for attacks.
Deeper analysisAI
CVE-2025-12272 is a buffer overflow vulnerability in Tenda CH22 firmware version 1.0.0.1. The flaw affects the fromAddressNat function in the /goform/addressNat file, where manipulation of the "page" argument triggers the overflow. Published on 2025-10-27, it is associated with CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-120 (Buffer Copy without Checking Size of Input).
The vulnerability enables remote exploitation by an attacker possessing low privileges, as indicated by its CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). A successful attack requires network access with low complexity and no user interaction, allowing the attacker to compromise confidentiality, integrity, and availability to a high degree, potentially resulting in remote code execution or system disruption.
VulDB advisories (e.g., ctiid.329944, id.329944) document the issue and recent submission details, while a proof-of-concept exploit is publicly available on GitHub at https://github.com/QIU-DIE/CVE/issues/21. The vendor site https://www.tenda.com.cn/ is referenced, but no specific patch or mitigation guidance is detailed in the provided sources.
Details
- CWE(s)