changingtec 関連製品全体の CVE とセキュリティ脆弱性情報を集約し、CVSS、EPSS、公開日、脆弱性情報データを掲載しています。
一般的な弱点パターンには vendor risk input validation、vendor risk sql injection、vendor risk memory corruption, and vendor risk ssrf があり、vendor surface software deployment の利用場面で vendor impact memory corruption and vendor impact unexpected behavior などのリスクが生じる可能性があります。
掲載データは公開脆弱性情報とセキュリティ公告に基づき、過去の暴露面と修補優先度の評価に利用できます。
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| CVE-2026-3000 | 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. | [email protected] | 9.3 | 0.09% | 2026-03-02 | 2026-03-09 |
| CVE-2026-2999 | 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. | [email protected] | 9.3 | 0.09% | 2026-03-02 | 2026-03-09 |
| CVE-2024-40723 | 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. | [email protected] | 4.3 | 1.42% | 2024-08-02 | 2024-08-09 |
| CVE-2024-40722 | 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. | [email protected] | 4.3 | 1.42% | 2024-08-02 | 2024-08-09 |
| CVE-2024-40721 | 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. | [email protected] | 8.8 | 2.28% | 2024-08-02 | 2024-08-09 |
| CVE-2024-40720 | 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. | [email protected] | 8.8 | 3.80% | 2024-08-02 | 2024-08-09 |
| CVE-2024-40719 | 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. | [email protected] | 6.5 | 0.07% | 2024-08-02 | 2024-08-09 |
| CVE-2023-22901 | ChangingTec MOTP system has a path traversal vulnerability. A remote attacker with administrator’s privilege can exploit this vulnerability to access arbitrary system files. | [email protected] | 4.9 | 0.24% | 2023-04-27 | 2024-11-21 |
| CVE-2022-39061 | 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. | [email protected] | 6.5 | 0.33% | 2023-01-31 | 2024-11-21 |
| CVE-2022-39060 | 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. | [email protected] | 9.8 | 1.04% | 2023-01-31 | 2024-11-21 |
| CVE-2022-39059 | ChangingTech MegaServiSignAdapter component has a path traversal vulnerability within its file reading function. An unauthenticated remote attacker can exploit this vulnerability to access arbitrary system files. | [email protected] | 7.5 | 1.38% | 2023-01-31 | 2024-11-21 |
| CVE-2022-46306 | ChangingTec ServiSign component has a path traversal vulnerability due to insufficient filtering for special characters in the DLL file path. An unauthenticated remote attacker can host a malicious website for the component user to access, which triggers the component to load malicious DLL files under arbitrary file path and allows the attacker to perform arbitrary system operation and disrupt of service. | [email protected] | 8.8 | 2.79% | 2023-01-03 | 2024-11-21 |
| CVE-2022-46305 | ChangingTec ServiSign component has a path traversal vulnerability. An unauthenticated LAN attacker can exploit this vulnerability to bypass authentication and access arbitrary system files. | [email protected] | 6.5 | 0.58% | 2023-01-03 | 2024-11-21 |
| CVE-2022-46304 | ChangingTec ServiSign component has insufficient filtering for special characters in the connection response parameter. An unauthenticated remote attacker can host a malicious website for the component user to access, which triggers command injection and allows the attacker to execute arbitrary system command to perform arbitrary system operation or disrupt service. | [email protected] | 8.8 | 1.53% | 2023-01-03 | 2024-11-21 |
| CVE-2022-39058 | RAVA certification validation system has a path traversal vulnerability. An unauthenticated remote attacker can exploit this vulnerability to bypass authentication and access arbitrary system files. | [email protected] | 7.5 | 0.88% | 2022-10-18 | 2024-11-21 |
| CVE-2022-39057 | RAVA certificate validation system has insufficient filtering for special parameter of the web page input field. A remote attacker with administrator privilege can exploit this vulnerability to perform arbitrary system command and disrupt service. | [email protected] | 7.2 | 0.44% | 2022-10-18 | 2024-11-21 |
| CVE-2022-39056 | RAVA certificate validation system has insufficient validation for user input. An unauthenticated remote attacker can inject arbitrary SQL command to access, modify and delete database. | [email protected] | 9.8 | 0.53% | 2022-10-18 | 2024-11-21 |
| CVE-2022-39055 | RAVA certificate validation system has inadequate filtering for URL parameter. An unauthenticated remote attacker can perform SSRF attack to discover internal network topology base on query response. | [email protected] | 5.3 | 0.09% | 2022-10-18 | 2024-11-21 |
| CVE-2021-44161 | Changing MOTP (Mobile One Time Password) system’s specific function parameter has insufficient validation for user input. A attacker in local area network can perform SQL injection attack to read, modify or delete backend database without authentication. | [email protected] | 8.8 | 0.16% | 2021-12-29 | 2024-11-21 |
| CVE-2020-3927 | An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter. | [email protected] | 8.3 | 0.41% | 2020-02-03 | 2024-11-21 |