CVE-2026-41922 WDR201A WiFi Extender OS Command Injection via wireless.cgi
Unauthenticated attackers can execute arbitrary shell commands on the WDR201A WiFi Extender via malicious input in wireless.cgi parameters.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-41922?
CVE-2026-41922 is a critical command injection vulnerability in Shenzhen Yipu Commercial and Trading Co., Ltd WDR201A WiFi Extender, published on 4 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-78
Which versions are affected by CVE-2026-41922?
How do I fix CVE-2026-41922?
No fix has been published for CVE-2026-41922 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-41922 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41922 exists.
Sources
Also known as GHSA-8wgj-4v3p-3568.