CVE-2026-41926

Published: Mag 04, 2026 Last Modified: Mag 04, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the firewall.cgi binary across five request handlers that apply insufficient input validation. Attackers can inject arbitrary shell commands through vulnerable parameters like websURLFilter, websHostFilter, portForward, singlePortForward, and ipportFilter using subshell syntax or unfiltered parameters, with payloads persisting in NVRAM and re-executing on every subsequent firewall.cgi request.

78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Availability Non-Repudiation
Potential Impacts:
Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Read Files Or Directories Modify Files Or Directories Read Application Data Modify Application Data Hide Activities
Applicable Platforms
Technologies: AI/ML, Not Technology-Specific, Web Server
Likelihood of Exploit: High
View CWE Details
https://mstreet97.github.io/security-research/iot/vulnerabi…
https://mstreet97.github.io/security-research/iot/vulnerability-disclosure/ai-a…
https://www.made-in-china.com/showroom/yeapook/#:~:text=Est…
https://www.made-in-china.com/showroom/yeapook/#:~:text=Established%20in%202015…
https://www.vulncheck.com/advisories/wdr201a-wifi-extender-…
https://www.vulncheck.com/advisories/wdr201a-wifi-extender-os-command-injection…