Changingtec: Security Vulnerabilities
IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated remote attackers to force the system to download arbitrary DLL files from a remote source and execute them.
CVSS Score
9.3
EPSS Score
0.001
Published
2026-03-02
IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated remote attackers to force the system to download arbitrary executable files from a remote source and execute them.
CVSS Score
9.3
EPSS Score
0.001
Published
2026-03-02
The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate server-side input. When a user visits a spoofed website, unauthenticated remote attackers can cause the TCBServiSign to load a DLL from an arbitrary path.
CVSS Score
8.8
EPSS Score
0.023
Published
2024-08-02
The specific API in TCBServiSign Windows Version from CHANGING Information Technology does does not properly validate the length of server-side input. When a user visits a spoofed website, unauthenticated remote attackers can cause a stack-based buffer overflow in the TCBServiSign, temporarily disrupting its service.
CVSS Score
4.3
EPSS Score
0.014
Published
2024-08-02
The specific API in HWATAIServiSign Windows Version from CHANGING Information Technology does not properly validate the length of server-side inputs. When a user visits a spoofed website, unauthenticated remote attackers can cause a stack-based buffer overflow in the HWATAIServiSign, temporarily disrupting its service.
CVSS Score
4.3
EPSS Score
0.014
Published
2024-08-02
The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate server-side input. When a user visits a spoofed website, unauthenticated remote attackers can modify the `HKEY_CURRENT_USER` registry to execute arbitrary commands.
CVSS Score
8.8
EPSS Score
0.038
Published
2024-08-02
The encryption strength of the authorization keys in CHANGING Information Technology TCBServiSign Windows Version is insufficient. When a remote attacker tricks a victim into visiting a malicious website, TCBServiSign will treat that website as a legitimate server and interact with it.
CVSS Score
6.5
EPSS Score
0.001
Published
2024-08-02
ChangingTec MOTP system has a path traversal vulnerability. A remote attacker with administrator’s privilege can exploit this vulnerability to access arbitrary system files.
CVSS Score
4.9
EPSS Score
0.001
Published
2023-04-27
ChangingTech MegaServiSignAdapter component has a vulnerability of improper input validation. An unauthenticated remote attacker can exploit this vulnerability to access and modify HKEY_CURRENT_USER subkey (ex: AutoRUN) in Registry where malicious scripts can be executed to take control of the system or to terminate the service.
CVSS Score
9.8
EPSS Score
0.01
Published
2023-01-31
ChangingTech MegaServiSignAdapter component has a vulnerability of Out-of-bounds Read due to insufficient validation for parameter length. An unauthenticated remote attacker can exploit this vulnerability to access partial sensitive content in memory and disrupts partial services.
CVSS Score
6.5
EPSS Score
0.003
Published
2023-01-31
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