CVE-2026-3040 - DrayTek Vigor 300B Web Management uploadlangs cgiGetFile os command injection

CVE ID : CVE-2026-3040 Published : Feb. 23, 2026, 10:16 p.m. | 2 hours, 10 minutes ago Description : A vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6. This affects the function cgiGetFile of the file /cgi-bin/mainfunction.cgi/uploadlangs of the component Web Management Interface. The manipulation of the argument File leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor confirms that