EUVD-2026-19514
GHSA-phcm-xmm8-7jpc
CVSS Vector
CVSS:4.0/AV:A/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 determined in Tenda CX12L 16.03.53.12. Affected by this issue is the function fromwebExcptypemanFilter of the file /goform/webExcptypemanFilter. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack requires access to the local network. The exploit has been publicly disclosed and may be utilized.
Analysis
Stack-based buffer overflow in Tenda CX12L router firmware version 16.03.53.12 enables adjacent network attackers with low-level credentials to execute arbitrary code or crash the device. The vulnerability resides in the webExcptypemanFilter function's handling of the 'page' parameter. …
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Remediation
Within 24 hours: Identify all Tenda CX12L routers in your environment and isolate those running firmware 16.03.53.12 to a separate management network if possible; document inventory with serial numbers and current firmware versions. Within 7 days: Contact Tenda support to confirm patch availability and obtain any available firmware updates; assess whether affected devices can be replaced with alternative vendors. …
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External POC / Exploit Code
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