CVE-2026-41926 - WDR201A WiFi Extender OS Command Injection via firewall.cgi
CVE ID :CVE-2026-41926
Published : May 4, 2026, 8:16 p.m. | 4 hours ago
Description :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.
Severity: 9.3 | CRITICAL
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Published : May 4, 2026, 8:16 p.m. | 4 hours ago
Description :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.
Severity: 9.3 | CRITICAL
Visit the link for more details, such as CVSS details, affected products, timeline, and more...