CVE-2007-6016: Multiple stack-based buffer overflows in the PVATLCalendar.PVCalendar.1 ActiveX control in pvcalendar.ocx i...

Security readout for executives and security teams

This is an old Symantec Backup Exec ActiveX vulnerability that can let an attacker run code if a Windows client loads the vulnerable calendar control. It matters most where legacy Backup Exec versions or their management components remain installed on admin workstations or servers. Exposure is likely limited to legacy Windows environments that still have affected Backup Exec 11d or 12.0 components, especially systems where the ActiveX control can be loaded by a client application or browser. Treat this as a legacy-risk cleanup item with high impact if still present. It should be prioritized in environments with old Backup Exec management software, privileged admin workstations, or weak ActiveX restrictions. Mitigation focus: Inventory Backup Exec 11d and 12.0 installations and related admin workstations.; Check Symantec or Veritas advisories for fixed versions, hotfixes, or vendor-approved workarounds.; Disable or remove the vulnerable ActiveX control where it is not operationally required..

Prepared

Jun 28, 2026, 19:27 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.