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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://jvn.jp/en/jp/JVN57877356/ cve-icon cve-icon
https://www.jpcert.or.jp/press/2026/PR20260423.html cve-icon cve-icon
History

Mon, 27 Apr 2026 00:15:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-943
References
Metrics cvssV3_0

{'score': 4.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published: 2026-04-27T00:04:23.709Z

Updated: 2026-04-27T00:04:23.709Z

Reserved: 2026-04-21T23:50:58.926Z

Link: CVE-2026-33566

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-27T00:16:20.083

Modified: 2026-04-27T00:16:20.083

Link: CVE-2026-33566

cve-icon Redhat

No data.