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CVE-2026-15027

Changing｜CGServiSign - OS Command Injection

CGServiSign developed by Changing has a OS Command Injection vulnerability. Unauthenticated remote attackers can induce victims to visit a malicious web page and inject arbitrary OS commands through the local service interface, resulting in command execution on the victim's local computer.

CVSS 4.0 · 8.6 High EPSS 3.2% KEV · Not listed
Vendors
Changingtec
Products
Servisign
CVE-2024-40719

CHANGING Information Technology TCBServiSign Windows Version - Inadequate Encryption Strength

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 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Tcb Servisign
CVE-2026-2999

Changing｜IDExpert Windows Logon Agent - Remote Code Execution

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 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Changing Changingtec
Products
Idexpert Windows Logon Agent Idexpert
CVE-2026-3000

Changing｜IDExpert Windows Logon Agent - Remote Code Execution

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 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Changing Changingtec
Products
Idexpert Windows Logon Agent Idexpert
CVE-2024-10653

CHANGING Information Technology IDExpert - OS Command Injection

IDExpert from CHANGING Information Technology does not properly validate a specific parameter in the administrator interface, allowing remote attackers with administrative privileges to inject and execute OS commands on the server.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Idexpert
CVE-2022-39058

Changing Information Technology Inc. RAVA certificate validation system - Path Traversal

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.

CVSS 3.1 · 7.5 High EPSS 2.2% KEV · Not listed
Vendors
Changingtec
Products
Rava Certificate Validation System
CVE-2022-39055

Changing Information Technology Inc. RAVA certificate validation system - Server-Side Request Forgery (SSRF)

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.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Rava Certificate Validation System
CVE-2022-39056

Changing Information Technology Inc. RAVA certificate validation system - SQL Injection

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.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Rava Certificate Validation System
CVE-2022-39057

Changing Information Technology Inc. RAVA certificate validation system - Command Injection

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.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Rava Certificate Validation System
CVE-2022-46304

ChangingTec ServiSign - Command Injection

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.

CVSS 3.1 · 8.8 High EPSS 1.5% KEV · Not listed
Vendors
Changingtec
Products
Servisign
CVE-2022-46305

ChangingTec ServiSign - Path Traversal

ChangingTec ServiSign component has a path traversal vulnerability. An unauthenticated LAN attacker can exploit this vulnerability to bypass authentication and access arbitrary system files.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Servisign
CVE-2022-46306

ChangingTec ServiSign - Path Traversal

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.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Servisign
CVE-2022-39059

ChangingTec MegaServiSignAdapter - Path Traversal

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.

CVSS 3.1 · 7.5 High EPSS 1.0% KEV · Not listed
Vendors
Changingtec
Products
Megaservisignadapter
CVE-2022-39060

ChangingTec MegaServiSignAdapter - Improper Input Validation

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 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Megaservisignadapter
CVE-2022-39061

ChangingTec MegaServiSignAdapter - Out-of-bounds Read

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 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Megaservisignadapter
CVE-2023-22901

ChangingTec MOTP - Path Traversal

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 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Mobile One Time Password
CVE-2021-44161

Changing Information Technology Inc. MOTP(Mobile One Time Password) - SQL Injection

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.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Changingtec
Products
Motp
CVE-2020-3927

ServiSign Windows Versions- Arbitrary File Deletion

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.

CVSS 3.1 · 8.3 High EPSS 1.2% KEV · Not listed
Vendors
Changingtec Microsoft
Products
Servisign Windows
CVE-2020-3926

ServiSign Windows Versions- Arbitrary File Access

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.

CVSS 3.1 · 6.1 Medium EPSS 1.5% KEV · Not listed
Vendors
Changingtec Microsoft
Products
Servisign Windows
CVE-2020-3925

ServiSign Windows Versions- Remote Code Execution via LoadLibrary

A Remote Code Execution(RCE) vulnerability exists in some designated applications in ServiSign security plugin, as long as the interface is captured, attackers are able to launch RCE and executes arbitrary command on target system via malicious crafted scripts.

CVSS 3.1 · 8.3 High EPSS 2.8% KEV · Not listed
Vendors
Changingtec Microsoft
Products
Servisign Windows