CVE-2023-51101
CWE-787Published: December 26, 2023· Updated: Jun 17, 2026
Official Description
Tenda W9 V1.0.0.7(4456)_CN was discovered to contain a stack overflow via the function formSetUplinkInfo.
Risk Analysis
The Tenda W9 firmware contains a stack overflow vulnerability in the formSetUplinkInfo function. This critical issue allows remote, unauthenticated attackers to trigger a buffer overflow, which may lead to arbitrary code execution.
No public exploit is known, and the vulnerability is not in the KEV catalog. It is remotely exploitable with low attack complexity.
Update the Tenda W9 firmware to the latest available version. Ensure the device is not accessible from the public internet.
Technical Analysis
CVE-2023-51101 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-51101 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts