VULNERABILITY INTELLIGENCE

CVE-2026-3040

CVSS score4.7 MEDIUM

EPSS probability10.15%

CISA KEVNot currently listed

Published2026-02-23

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

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.

Weakness classification

cna@vuldb.com: CWE-77
nvd@nist.gov: CWE-78

Primary references

cna@vuldb.com — Exploit, Issue Tracking
cna@vuldb.com — Permissions Required, Third Party Advisory, VDB Entry
cna@vuldb.com — Third Party Advisory, VDB Entry
cna@vuldb.com — Third Party Advisory, VDB Entry