Remote Code Execution Vulnerability in IDExpert Windows Logon Agent by Changing
CVE-2026-3000

9.3CRITICAL

Key Information:

Vendor

Changing

Status
Idexpert Windows Logon Agent
Vendor
CVE Published:
2 March 2026

What is CVE-2026-3000?

The IDExpert Windows Logon Agent developed by Changing is susceptible to a vulnerability that allows unauthorized attackers to execute remote code. This flaw enables attackers to compel the system to download and run arbitrary DLL files from a malicious source without authentication. Such exploitation poses a significant threat, potentially enabling attackers to gain control over affected systems.

Affected Version(s)

IDExpert Windows Logon Agent 2.7.3.230719 <= 2.8.4.250925

References

https://www.twcert.org.tw/tw/cp-132-10740-b2eb2-1.html
third-party-advisory
https://www.twcert.org.tw/en/cp-139-10741-daed4-2.html
third-party-advisory
https://www.changingtec.com/news_detail.jsp?item_id=348
vendor-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.