CVE-2026-41924CWE-78

WDR201A WiFi Extender OS Command Injection via makeRequest.cgi

Critical · published May 4, 2026

CVSS v4.0
9.3
EPSS
3%
Percentile
88.4
In the wild
Unconfirmed
What it is

WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the makeRequest.cgi binary that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the set_time or StartSniffer functions. Attackers can craft a POST request with specially crafted ampersand-delimited parameters to bypass input sanitization and execute commands with a maximum length of 31 bytes through the date command or channel parameter processing.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
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
EPSS
0.03277 · 88.4th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-05-04T19:12Z
EPSS history
Timeline
  • 04 MAY 19:12Z
    WDR201A WiFi Extender OS Command Injection via makeRequest.cgi
    cvelistv5