EUVD-2026-17247
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4Description
A vulnerability has been found in Tenda CH22 1.0.0.1/1.If. The impacted element is the function fromSetCfm of the file /goform/setcfm of the component Parameter Handler. The manipulation of the argument funcname leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.
Analysis
Stack-based buffer overflow in Tenda CH22 router (versions 1.0.0.1 and 1.If) allows authenticated remote attackers to achieve code execution via crafted 'funcname' parameter to the /goform/setcfm endpoint. Publicly available exploit code exists (GitHub POC), significantly lowering exploitation barrier. …
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Remediation
Within 24 hours: Inventory all Tenda CH22 routers and document affected versions (1.0.0.1 and 1.1f); confirm current firmware versions through device management console. Within 7 days: Enforce strong authentication on all Tenda devices (minimum 16-character passwords, disable default credentials); restrict administrative access to trusted networks only via firewall rules. …
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External POC / Exploit Code
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