Stack-based buffer overflow in Unitronics VisiLogic OPLC IDE before 9.8.30 allows remote attackers to execute arbitrary code via a crafted filename field in a ZIP archive in a vlp file.
Unitronics VisiLogic before version 9.9.00, used in Vision and Samba PLCs and HMIs, uses a default administrative password. An unauthenticated attacker with network access can take administrative control of a vulnerable system.
Heap-based buffer overflow in Unitronics VisiLogic OPLC IDE before 9.8.09 allows remote attackers to execute arbitrary code via a long vlp filename.
Unitronics VisiLogic OPLC IDE before 9.8.02 allows remote attackers to execute unspecified code via unknown vectors.
Unitronics VisiLogic OPLC IDE before 9.8.02 does not properly restrict access to ActiveX controls, which allows remote attackers to have an unspecified impact via a crafted web site.