How severe is CVE-2026-41922?

CVE-2026-41922 has a CVSS 4.0 base score of 9.3 (CRITICAL). EPSS estimates a 6.7% probability of exploitation in the next 30 days.

CVE-2026-41922: WDR201A WiFi Extender OS Command Injection via

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.

Severity

CVSS 4.0 · CNA9.3 CRITICAL

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

SSVC · CISA-ADP

Exploitationpoc

Automatableyes

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Shenzhen Yipu Commercial and Trading Co., Ltd	WDR201A WiFi Extender	0 to 1.02.0

References

3 Links

Exploits & PoCs

https://mstreet97.github.io/security-research/iot/vulnerability-disclosure/ai-assisted-research/cybersecurity/cve/2026/05/04/Teaching_the_Machine_Where_to_Look.html

Third-party advisories

https://www.vulncheck.com/advisories/wdr201a-wifi-extender-os-command-injection-via-wireless-cgi

Product pages

https://www.made-in-china.com/showroom/yeapook/#:~:text=Established%20in%202015.%2CDistrict%2C%20Shenzhen%2C%20Guangdong%2C%20China

Record Details

Published

2026-05-04

Last updated

2026-05-26

Assigner (CNA)

VulnCheck

Credited to

Matteo Strada; Daniele Berardinelli

Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CWE-78 · OS Command Injection

Application Security Tools Penetration Testing Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.