CVE-2026-41925

WDR201A WiFi Extender OS Command Injection via adm.cgi (reboot_time)

Published May 4, 2026 CVSS 4.0 · 9.3 Critical EPSS 4.0% KEV · Not listed
Description
WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the adm.cgi binary's reboot_time function that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the reboot_time POST parameter. Attackers can send a crafted request with shell metacharacters in the reboot_time parameter when reboot_enabled=1 to achieve remote code execution.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Shenzhen Yuner Yipu
Shenzhen Yuner Yipu wifi Extender Wdr201a
Vendors & Products Shenzhen Yuner Yipu
Shenzhen Yuner Yipu wifi Extender Wdr201a
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the adm.cgi binary's reboot_time function that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the reboot_time POST parameter. Attackers can send a crafted request with shell metacharacters in the reboot_time parameter when reboot_enabled=1 to achieve remote code execution.
Title WDR201A WiFi Extender OS Command Injection via adm.cgi (reboot_time)
Weaknesses CWE-78
References
Metrics cvssV4_0

{'score': 9.3, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
May 11, 2026, 11:11 PM
Reserved
Apr 22, 2026, 6:50 PM
Status
Deferred
Published
May 4, 2026, 8:16 PM
Modified
Oct 26, 2026, 7:10 PM