CVE-2021-47705

CVSS

No CVSS.

C

OMMAX 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.

References

Link	Resource
https://www.commax.com
https://www.exploit-db.com/exploits/50232
https://www.vulncheck.com/advisories/commax-ums-client-activex-control-cnc-ctrl-dll-heap-buffer-overflow
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5664.php

Configurations

No configuration.

History

12 Dec 2025, 15:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-09 21:15

Updated : 2025-12-12 15:19

NVD link : CVE-2021-47705

Mitre link : CVE-2021-47705

CVE.ORG link : CVE-2021-47705

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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