Japan Computer Emergency Response Team Coordination Center (jpcert/cc) CVEs and Security Vulnerabilities

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CVE-2026-28704

DLL Loading Vulnerability Allowing Local Arbitrary Code Execution in EmoCheck

Emocheck insecurely loads Dynamic Link Libraries (DLLs). If a crafted DLL file is placed to the same directory, an arbitrary code may be executed with the privilege of the user invoking EmoCheck.

CVSS 4.0 · 8.4 High EPSS < 1% KEV · Not listed

Vendors

Japan Computer Emergency Response Team Coordination Center (jpcert/cc) Jpcert

Products

Emocheck Emocheck

CVE-2026-33277

OS Command Injection in LogonTracer Prior to v2.0.0 Allows Arbitrary Command Execution by Authenticated User

An OS command Injection issue exists in LogonTracer prior to v2.0.0. An arbitrary OS command may be executed by a logged-in user.

CVSS 4.0 · 8.7 High EPSS 1.3% KEV · Not listed

Vendors

Japan Computer Emergency Response Team Coordination Center (jpcert/cc) Jpcert

Products

Logontracer Logontracer

CVE-2026-33566

Cypher Injection in LogonTracer Permitting Database Modification

There is a cypher injection issue in LogonTracer prior to v2.0.0. If specially crafted Windows event log data is loaded, the contents of the database may be altered.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed

Vendors

Japan Computer Emergency Response Team Coordination Center (jpcert/cc) Jpcert

Products

Logontracer Logontracer

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