EUVD-2026-31555
GHSA-r23w-53vr-mr47
CVSS VectorNVD
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
3DescriptionNVD
A vulnerability was detected in Edimax EW-7438RPn up to 1.31. This affects the function formWizSurvey of the file /goform/formWizSurvey of the component webs. Performing a manipulation of the argument ssid/manualssid/ip/mask/gateway results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
AnalysisAI
Buffer overflow in Edimax EW-7438RPn WiFi range extender firmware versions up to 1.31 enables authenticated remote attackers to execute arbitrary code by sending malformed parameters to the device configuration interface. The vulnerability affects the formWizSurvey function in /goform/formWizSurvey when processing ssid, manualssid, ip, mask, or gateway parameters, with publicly available exploit code existing on GitHub.
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RemediationAI
Within 24 hours: Inventory all Edimax EW-7438RPn devices in your environment and document current firmware versions. Within 7 days: Isolate affected devices (firmware ≤1.31) to segregated networks if possible, implement network access controls restricting configuration interface access to authorized administrators only, and monitor device logs for suspicious configuration parameter submissions. …
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External POC / Exploit Code
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