CVE-2018-16167
CriticalExploitedPublic exploitLogonTracer 1.2.0 and earlier allows remote attackers to execute arbitrary OS commands via unspecified vectors.
Published Jan 9, 2019 · Updated Jul 8, 2026
Key Facts
Patch immediately- CVE-2018-16167 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting LogonTracer (Jpcert).
- It is exploited in the wild, listed in Industry KEV feed since Apr 15, 2024. Public exploit code is available.
- EPSS estimates a 75% probability of exploitation in the next 30 days.
- Fixed versions are available, including LogonTracer <=1.2.0, LogonTracer 1.2.0.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
75%
Higher than 99.5% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2018-16167 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
LogonTracer 1.2.0 and earlier allows remote attackers to execute arbitrary OS commands via unspecified vectors.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Apr 15, 2024 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| LogonTracerJpcert | >= 1.2.0 and earlier | 1.2.0 |
Patched Releases
LogonTracer
<=1.2.0
Timeline
Publicly disclosed
Jan 9, 2019
Added to Industry KEV feed
Apr 15, 2024
Last updated
Jul 8, 2026
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
FAQ
Common Questions.
LogonTracer 1.2.0 and earlier allows remote attackers to execute arbitrary OS commands via unspecified vectors.
Affected: LogonTracer (Jpcert) versions >= 1.2.0 and earlier. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Apr 15, 2024.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including LogonTracer <=1.2.0, LogonTracer 1.2.0.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2018-16167 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo