CVE-2026-33566
CVE-2026-33566 is a medium-severity vulnerability in Jpcert Logontracer with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-943.
Key facts
- Severity: Medium (CVSS 3.x base score 4.3)
- CVSS v4: 5.1
- EPSS exploit prediction: 0% (7th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-25742
- Weakness: CWE-943
- Affected product: Jpcert Logontracer
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-33566?
- 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.
- How severe is CVE-2026-33566?
- CVE-2026-33566 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2026-33566 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-33566?
- CVE-2026-33566 affects Jpcert Logontracer. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-33566?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-33566 have an EU (EUVD) identifier?
- Yes. CVE-2026-33566 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25742.
- When was CVE-2026-33566 published?
- CVE-2026-33566 was published on 2026-04-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:jpcert:logontracer:*:*:*:*:*:*:*:*
More vulnerabilities in Jpcert Logontracer
- CVE-2018-16168 — Critical (CVSS 9.8): LogonTracer 1.2.0 and earlier allows remote attackers to conduct Python code injection attacks via unspecified vectors.
- CVE-2018-16167 — Critical (CVSS 9.8): LogonTracer 1.2.0 and earlier allows remote attackers to execute arbitrary OS commands via unspecified vectors.
- CVE-2026-33277 — High (CVSS 8.8): An OS command Injection issue exists in LogonTracer prior to v2.0.0. An arbitrary OS command may be executed by a…
- CVE-2018-16166 — High (CVSS 8.8): LogonTracer 1.2.0 and earlier allows remote attackers to conduct XML External Entity (XXE) attacks via unspecified…
- CVE-2018-16165 — Medium (CVSS 6.1): Cross-site scripting vulnerability in LogonTracer 1.2.0 and earlier allows remote attackers to inject arbitrary web…
All CVEs affecting Jpcert Logontracer →
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