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CVE-2026-3040
MEDIUM4.7
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 "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.
CVE Details
CVSS v3.1 Score4.7
SeverityMEDIUM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredHIGH
User InteractionNONE
Published2/23/2026
Last Modified2/26/2026
Sourcenvd
Honeypot Sightings0
Affected Products
draytek:vigor300bdraytek:vigor300b_firmware
Weaknesses (CWE)
CWE-77CWE-78CWE-78
References
https://github.com/master-abc/cve/issues/42(cna@vuldb.com)
https://vuldb.com/?ctiid.347394(cna@vuldb.com)
https://vuldb.com/?id.347394(cna@vuldb.com)
https://vuldb.com/?submit.757126(cna@vuldb.com)
IOC Correlations
No correlations recorded
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