EUVD-2026-27120CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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
2DescriptionNVD
WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the internet.cgi binary that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the gateway POST parameter. Attackers can exploit unsanitized parameter concatenation in the set_add_routing function to inject shell commands that are executed via popen() with partial output reflected in the HTTP response.
AnalysisAI
OS command injection in WDR201A WiFi Extender firmware v1.02 allows unauthenticated remote attackers to execute arbitrary shell commands via the gateway parameter in internet.cgi. Exploitation requires no user interaction or authentication against internet-exposed devices. …
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RemediationAI
Within 24 hours: Inventory all WDR201A WiFi Extender devices on network; identify those with internet-facing gateway parameter access; isolate or air-gap affected units immediately. Within 7 days: Remove WDR201A devices from production and replace with actively maintained alternatives; if removal impossible, implement network segmentation restricting device access to isolated VLANs. …
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