CVE-2026-3000Network attack vector

Unauthenticated code execution via unverified DLL download

Published Mar 2, 2026 · Updated Mar 2, 2026

Remote code execution in IDExpert Windows Logon Agent 2.7.3.230719 through 2.8.4.250925 allows remote attackers to execute DLLs without authentication. The WinLogon package's default configuration downloads an attacker-directed remote DLL without an integrity check and executes it. Network reachability is sufficient; successful exploitation runs attacker-supplied code on the targeted Windows endpoint.

CVSS severity9.3
Critical
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in IDExpert Windows Logon Agent 2.7.3.230719 through 2.8.4.250925 allows remote attackers to execute DLLs without authentication. The WinLogon package's default configuration downloads an attacker-directed remote DLL without an integrity check and executes it. Network reachability is sufficient; successful exploitation runs attacker-supplied code on the targeted Windows endpoint.

The record

CVE
CVE-2026-3000
Published
Mar 2, 2026
Updated
Mar 2, 2026
Vendor
CHANGING Information Technology Inc.
Product
IDExpert Windows Logon Agent
Classifications
CWE-494, T1105
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.7.3.230719 <=2.8.4.250925

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CHANGING Information Technology Inc. · IDExpert Windows Logon Agentversion=2.7.3.230719 <=2.8.4.250925

Published CVSS scores

9.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3TWCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-494Download of Code Without Integrity Check
T1105Ingress Tool Transfer

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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