EUVD-2026-17218
GHSA-w9hr-c3cr-g2ww
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 was detected in Tenda CH22 1.0.0.1. Impacted is the function formCreateFileName of the file /goform/createFileName. Performing a manipulation of the argument fileNameMit results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.
Analysis
Stack-based buffer overflow in Tenda CH22 router version 1.0.0.1 allows authenticated remote attackers to achieve arbitrary code execution via the formCreateFileName function. The vulnerability resides in the /goform/createFileName endpoint where insufficient input validation of the 'fileNameMit' parameter enables memory corruption. …
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Remediation
Within 24 hours: Inventory all Tenda CH22 routers running version 1.0.0.1 and restrict network access to the /goform/createFileName endpoint using firewall rules or access control lists. Within 7 days: Contact Tenda for patch status and timeline; if unavailable, evaluate replacement with alternative router models from vendors with active security support. …
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External POC / Exploit Code
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