CVE-2021-47705 — CNC_Ctrl DllUnregisterServer Access Violation
COMMAX UMS Client ActiveX Control 1.7.0.2 contains a heap-based buffer overflow vulnerability that allows attackers to execute arbitrary code by providing excessively long strin…
Published: 2025-12-09 · CVSS: 8.7 · CVSS 4.0
COMMAX UMS Client ActiveX Control 1.7.0.2 contains a heap-based buffer overflow vulnerability that allows attackers to execute arbitrary code by providing excessively long string arrays through multiple functions. Attackers can exploit improper boundary validation in CNC_Ctrl.dll to cause heap corruption and potentially gain system-level access.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7