CVE-2026-3040

Summary

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.

Affected Software

VendorProductVersion RangeStatus
DrayTekVigor 300B1.5.1.0affected
DrayTekVigor 300B1.5.1.1affected
DrayTekVigor 300B1.5.1.2affected
DrayTekVigor 300B1.5.1.3affected
DrayTekVigor 300B1.5.1.4affected
DrayTekVigor 300B1.5.1.5affected
DrayTekVigor 300B1.5.1.6affected

Weaknesses

  • CWE-78: OS Command Injection
  • CWE-77: Command Injection

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

References