CVE-2026-30703

A command injection vulnerability exists in the web management interface of the WiFi Extender WDR201A (HW V2.1, FW LFMZX28040922V1.02)

Critical · published March 18, 2026

CVSS v3.1
9.8
EPSS
2%
Percentile
81.1
In the wild
Unconfirmed
What it is

A command injection vulnerability exists in the web management interface of the WiFi Extender WDR201A (HW V2.1, FW LFMZX28040922V1.02). The adm.cgi endpoint improperly sanitizes user-supplied input provided to a command-related parameter in the sysCMD functionality.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02052 · 81.1th percentile
Published
2026-03-18T00:00Z
EPSS history
Timeline
  • 18 MAR 00:00Z
    A command injection vulnerability exists in the web management interface of the WiFi Extender WDR201A (HW V2.1, FW LFMZX28040922V1.02)
    cvelistv5