UCanCode.Net E-XD++ Visualization Enterprise Suite TKDRAWCAD.TKDrawCADCtrl.1 out-of-range pointer offset

Summaryinfo

A vulnerability was found in UCanCode.Net E-XD++ Visualization Enterprise Suite. It has been declared as critical. Impacted is an unknown function of the component TKDRAWCAD.TKDrawCADCtrl.1. Such manipulation leads to use of out-of-range pointer offset. This vulnerability is uniquely identified as CVE-2017-20211. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in UCanCode.Net E-XD++ Visualization Enterprise Suite (version now known). Affected by this issue is some unknown processing of the component TKDRAWCAD.TKDrawCADCtrl.1. The manipulation with an unknown input leads to a use of out-of-range pointer offset vulnerability. Using CWE to declare the problem leads to CWE-823. The product performs pointer arithmetic on a valid pointer, but it uses an offset that can point outside of the intended range of valid memory locations for the resulting pointer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

UCanCode E-XD++ Visualization Enterprise Suite contains an untrusted pointer dereference vulnerability via the TKDRAWCAD.TKDrawCADCtrl.1 ActiveX control. This is because it exposes a RotateShape method that dereferences a user-supplied pointer without sufficient validation. A crafted input may cause the control to dereference an attacker-controlled pointer, enabling remote code execution in the context of the hosting process. The vulnerability requires user interaction (instantiation of the ActiveX control via a web page or a file).

The weakness was disclosed by rgod as ZDI-17-422. The advisory is available at zerodayinitiative.com. This vulnerability is handled as CVE-2017-20211 since 11/12/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/13/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2017-18927). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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Vendor

• UCanCode.Net

Name

• E-XD++ Visualization Enterprise Suite

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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