CVE-2026-77031: Tenda CH22 formcreateFileName command injection

Severity: high (CVSS 7.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-20 · updated 2026-10-18
Weakness: CWE-74

Description

A vulnerability has been found in Tenda CH22 1.0.0.1. The affected element is the function formcreateFileName of the file /goform/formcreateFileName. The manipulation of the argument fileNameMit leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products

Tenda CH22: 1.0.0.1

References

https://candle-throne-f75.notion.site/Tenda-CH22-formcreateFileName-392df0aa118580c38c4ad15fb15cd30d
https://vuldb.com/cve/CVE-2026-77031
https://vuldb.com/submit/880667
https://vuldb.com/vuln/393642
https://vuldb.com/vuln/393642/cti
https://www.tenda.com.cn/

Get alerted when CVE-2026-77031 or the next vulnerability affects your stack