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CVE-2026-33566

Quick assessment

Affected
Japan Computer Emergency Response Team Coordination Center (JPCERT/CC) LogonTracer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LogonTracer是日本JPCERT组织的一款可视化的系统日志分析工具。该产品可以通过分析WindowsActiveDirectory事件日志检查恶意登录。 LogonTracer 2.0.0之前版本存在安全漏洞，该漏洞源于密码注入问题，可能导致加载特制Windows事件日志数据时修改数据库内容。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-33566

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
数据查询逻辑中特殊元素的不当中和
Source: CVE Program / CVE List V5
Vulnerability Title
LogonTracer 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LogonTracer是日本JPCERT组织的一款可视化的系统日志分析工具。该产品可以通过分析WindowsActiveDirectory事件日志检查恶意登录。 LogonTracer 2.0.0之前版本存在安全漏洞，该漏洞源于密码注入问题，可能导致加载特制Windows事件日志数据时修改数据库内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Japan Computer Emergency Response Team Coordination Center (JPCERT/CC) LogonTracer prior to v2.0.0 -

II. Public POCs for CVE-2026-33566

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III. Intelligence Information for CVE-2026-33566

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Vendor Advisories for CVE-2026-33566 (2)

IV. Related Vulnerabilities

Same product: LogonTracer
Same vendor: Japan Computer Emergency Response Team Coordination Center (JPCERT/CC)
Same weakness: CWE-943

V. Comments for CVE-2026-33566

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