Critical 9.3Published May 4, 2026

CVE-2026-41923WDR201A WiFi Extender OS Command Injection via internet.cgi

Updated under an hour ago (Oct 27, 2026, 12:40 PM ET)

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It affects Shenzhen Yipu Commercial and Trading Co., Ltd WDR201A WiFi Extender. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Shenzhen Yipu Commercial and Trading Co., Ltd WDR201A WiFi Extender

Exploited in the last 30 days

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.

CVSS: 9.3 CRITICAL (v4.0, CNA)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
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Shenzhen Yipu Commercial and Trading Co., Ltd WDR201A WiFi Extender shenzhen_yipu_commercial_and_trading:wdr201a_wifi_extender (from the name)	through 1.02.0	CNA record

References

References

https://mstreet97.github.io/security-research/iot/vulnerability-disclosure/ai-assisted-research/cybersecurity/cve/2026/05/04/Teaching_the_Machine_Where_to_Look.html	technical-description, exploit
https://www.made-in-china.com/showroom/yeapook/#:~:text=Established%20in%202015.%2CDistrict%2C%20Shenzhen%2C%20Guangdong%2C%20China	product
https://www.vulncheck.com/advisories/wdr201a-wifi-extender-os-command-injection-via-internet-cgi	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.