CVE-2025-9812
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk50th percentile - higher than 50% of all known CVEs
Summary
A buffer overflow vulnerability was found in Tenda CH22 1.0.0.1 within the formexeCommand function of /goform/exeCommand. Manipulating the cmdinput argument leads to buffer overflow. The attack can be performed remotely and the exploit has been publicly disclosed.
Risk Assessment
This vulnerability could allow a remote attacker to execute code or disrupt the device, posing a serious risk to organizations using this router. The public exploit increases the likelihood of exploitation.
Recommendation
Immediately update the Tenda CH22 firmware to the latest version or isolate the device from public networks. If updating is not possible, disable management interface access from external networks.
Other vulnerabilities in Tenda CH22
See all- CVE-2025-15229Medium
A vulnerability has been found in Tenda CH22 up to 1.0.0.1. Affected is the function fromDhcpListClient of the file /goform/DhcpListClient. Manipulation of the argument LISTLEN leads to denial of service. The attack may be launched remotely. The exploit has been disclosed to the public.
- CVE-2025-11418Critical
A security vulnerability has been detected in Tenda CH22 up to 1.0.0.1. This issue affects the function formWrlsafeset of the file /goform/AdvSetWrlsafeset, where manipulation of the mit_ssid_index argument leads to a stack-based buffer overflow. The attack may be initiated remotely and the exploit has been disclosed publicly.
- CVE-2026-78141High
A vulnerability in Tenda CH22 1.0.0.1 in the formexeCommand function of the /goform/exeCommand file. Manipulation of the cmdinput argument leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
- CVE-2026-78063High
A security flaw was discovered in Tenda CH22 1.0.0.1. The function formeditFileName in /goform/editFileName is vulnerable to command injection via the editNameMit argument. The attack can be launched remotely and the exploit has been released publicly.
- CVE-2026-77031High
A vulnerability has been found in Tenda CH22 1.0.0.1 in the function formcreateFileName of the file /goform/formcreateFileName. Manipulation of the argument fileNameMit leads to command injection. The attack can be initiated remotely, and the exploit has been publicly disclosed.
- CVE-2026-19346High
A vulnerability in Tenda CH22 1.0.0.1 allows command injection in the formCertListInfo function of /goform/CertListInfo. Manipulating the Name argument enables remote command execution. The exploit is public.
- CVE-2026-15543High
A buffer overflow vulnerability was found in Tenda CH22 version 1.0.0.1 in the formCertListInfo function of the /goform/CertListInfo file. An attacker can remotely manipulate the Name argument, causing a buffer overflow. The exploit has been made public and could be used.
- CVE-2026-5605High
A stack-based buffer overflow vulnerability was identified in the Tenda CH22 device version 1.0.0.1 in the formWrlExtraSet function of the /goform/WrlExtraSet file. The attack can be performed remotely by manipulating the GO argument. The exploit has been made public.
- CVE-2026-5604High
A security flaw has been discovered in Tenda CH22 1.0.0.1. This vulnerability affects the function formCertLocalPrecreate in the file /goform/CertLocalPrecreate, where manipulation of the standard argument leads to a stack-based buffer overflow. The attack can be launched remotely, and the exploit has been publicly released.
- CVE-2026-5204High
The Tenda CH22 router version 1.0.0.1 has a stack-based buffer overflow vulnerability in the formWebTypeLibrary function in /goform/webtypelibrary. Manipulating the webSiteId argument allows remote code execution. The exploit has been publicly disclosed.
Original NVD description (English source)
A vulnerability was determined in Tenda CH22 1.0.0.1. This vulnerability affects the function formexeCommand of the file /goform/exeCommand. Executing manipulation of the argument cmdinput can lead to buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

