RCE in Shenzhen Yipu Commercial And Trading Co., Ltd Wdr201a Wifi Extender

CVE-2026-41922

WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the wireless.cgi binary that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the sz11gChannel or PIN POST parameters. Attackers can exploit unsanitized parameter handling in the set_wifi_basic and set_wifi_do_wps functions to achieve remote code execution without authentication.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

EPSS exploit prediction

EPSS: 0.067 (93.7th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-41922: rose from 0.050 to 0.067.

EPSS over last 30 days · oldest: 0.050 · newest: 0.067 · change: +0.017

Affected products

Weakness classification (CWE)

References