CVE-2021-47719

COMMAX WebViewer ActiveX Control 2.1.4.5 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by providing excessively long string arrays through multiple functions. Attackers can exploit boundary errors in Commax_WebViewer.ocx to cause buffer overflow conditions and potentially gain code execution.

CVSS

No CVSS.

References

Link	Resource
https://www.commax.com
https://www.exploit-db.com/exploits/50231
https://www.vulncheck.com/advisories/commax-webviewer-activex-control-commax-webviewer-ocx-buffer-overflow
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5663.php

Configurations

No configuration.

History

10 Dec 2025, 16:16

Type	Values Removed	Values Added
References	~~{'url': 'https://www.vulncheck.com/advisories/cncctrl-dllunregisterserver-f-access-violation', 'source': 'disclosure@vulncheck.com'}~~	() https://www.vulncheck.com/advisories/commax-webviewer-activex-control-commax-webviewer-ocx-buffer-overflow -

09 Dec 2025, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-09 21:15

Updated : 2025-12-12 15:19

NVD link : CVE-2021-47719

Mitre link : CVE-2021-47719

CVE.ORG link : CVE-2021-47719

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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