CVE-2018-5221: Barcodewiz Barcode Activex Control

High severity, CVSS 8.8. EPSS: 3.9% chance of exploitation in the next 30 days.

Multiple buffer overflows in BarCodeWiz BarCode before 6.7 ActiveX control (BarcodeWiz.DLL) allow remote attackers to execute arbitrary code via a long argument to the (1) BottomText or (2) TopText property.

Affected products

• Barcodewiz Barcode Activex Control: before 6.7 (fixed in 6.7)

Published 2018-01-09. Last modified 2026-06-17.