PT-2026-36911

CVE-2026-41923

Published

2026-05-04

Updated

2026-05-05

Description by

CVSS 4.0

9.3

Critical

MetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02)

Description An OS command injection issue exists in the 'internet.cgi' binary. Unauthenticated remote attackers can execute arbitrary shell commands by injecting malicious input into the gateway POST parameter. This occurs due to unsanitized parameter concatenation within the set add routing() function, where commands are executed via popen(), and partial output is reflected in the HTTP response.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploitability

Exploit

Impacts

Researchers

Daniele Berardinelli

Matteo Strada

Vendors

Affected products

Weakness enumeration

CWE-78: Improper Neutralization of Special Elements used in an OS Command (\'OS Command Injection\')

Related identifiers