9.8
CRITICAL CVSS 3.1
CVE-2026-3000
Changing|IDExpert Windows Logon Agent - Remote Code Execution
Description

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.

INFO

Published Date :

March 2, 2026, 7:16 a.m.

Last Modified :

March 9, 2026, 2:21 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-3000 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Changingtec idexpert
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e
CVSS 3.1 CRITICAL [email protected]
CVSS 4.0 CRITICAL cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e
CVSS 4.0 CRITICAL [email protected]
Solution
Update the agent to the latest version to fix the DLL execution vulnerability.
  • Update the IDExpert Windows Logon Agent to the latest version.
  • Remove unnecessary remote DLL download functionality.
  • Implement strict validation for downloaded files.
Public PoC/Exploit Available at Github

CVE-2026-3000 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-3000.

URL Resource
https://www.changingtec.com/news_detail.jsp?item_id=348 Patch Vendor Advisory
https://www.twcert.org.tw/en/cp-139-10741-daed4-2.html Third Party Advisory
https://www.twcert.org.tw/tw/cp-132-10740-b2eb2-1.html Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-3000 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Autonomous CVE-to-behaviour fingerprinting engine that forges Splunk detection rules from live threat intelligence.

Python

Updated: 2 weeks, 6 days ago
0 stars 0 fork 0 watcher
Born at : March 2, 2026, 11:28 p.m. This repo has been linked 3 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-3000 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-3000 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Mar. 09, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:changingtec:idexpert:*:*:*:*:*:windows:*:* versions from (including) 2.7.3.230719 up to (including) 2.8.4.250925
    Added Reference Type TWCERT/CC: https://www.changingtec.com/news_detail.jsp?item_id=348 Types: Patch, Vendor Advisory
    Added Reference Type TWCERT/CC: https://www.twcert.org.tw/en/cp-139-10741-daed4-2.html Types: Third Party Advisory
    Added Reference Type TWCERT/CC: https://www.twcert.org.tw/tw/cp-132-10740-b2eb2-1.html Types: Third Party Advisory
  • New CVE Received by [email protected]

    Mar. 02, 2026

    Action Type Old Value New Value
    Added Description 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-494
    Added Reference https://www.changingtec.com/news_detail.jsp?item_id=348
    Added Reference https://www.twcert.org.tw/en/cp-139-10741-daed4-2.html
    Added Reference https://www.twcert.org.tw/tw/cp-132-10740-b2eb2-1.html
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.