CVE-2026-3040
MEDIUMDrayTek Vigor 300B <=1.5.1.6 - Command Injection
Title source: llmDescription
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 "300B is EoL, and this is an authenticated vulnerability. We don't plan to fix it." This vulnerability only affects products that are no longer supported by the maintainer.
Scores
CVSS v3
4.7
EPSS
0.0028
EPSS Percentile
51.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Classification
CWE
CWE-78
CWE-77
Status
published
Affected Products (1)
draytek/vigor300b_firmware
< 1.5.1.6
Timeline
Published
Feb 23, 2026
Tracked Since
Feb 23, 2026