Cyber Resilience

CVE-2026-33566

Jpcert Logontracer ≤ 2.0.0

Published
27 April 2026
Modified
28 April 2026
CVSS Score v4 5.1
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/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
EPSS Score 0.0018 7th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-33566 is a medium-severity Improper Neutralization of Special Elements in Data Query Logic (CWE-943) vulnerability in Jpcert Logontracer. Its CVSS base score is 5.1 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

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.

CWE(s)
CWE-943

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2018-16167Same product: Jpcert Logontracer
CVE-2026-33277Same product: Jpcert Logontracer
CVE-2026-30941Shared CWE-943
CVE-2026-10698Shared CWE-943
CVE-2024-35136Shared CWE-943
CVE-2025-36366Shared CWE-943
CVE-2026-53674Shared CWE-943
CVE-2025-33114Shared CWE-943
CVE-2024-4872Shared CWE-943
CVE-2025-60357Shared CWE-943

Affected Assets

jpcert
logontracer
≤ 2.0.0

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

Input validation directly stops unneutralized special elements from reaching query logic.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require parameterized queries and input neutralization to prevent query-logic injection.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development catches injection vulnerabilities before release but does not itself implement the fix.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates input validation and query parameterization that directly prevent injection flaws.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for controls against injection and improper query construction.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles reduce the likelihood of query-logic flaws but do not prescribe the specific coding practice.

A.8.28 Secure coding partial match
prevents

Secure coding standards require proper neutralization of special elements in all data queries.

A.8.30 Outsourced development partial match
prevents

Outsourced development agreements can require secure coding practices, indirectly mitigating the weakness.

References