CVE-2018-19666
CVE-2018-19666 is a high-severity vulnerability in Ossec with a CVSS 3.x base score of 7.8. 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-22.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 7.2
- EPSS exploit prediction: 1% (53rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Ossec
- Published:
- Last modified:
Description
The agent in OSSEC through 3.1.0 on Windows allows local users to gain NT AUTHORITY\SYSTEM access via Directory Traversal by leveraging full access to the associated OSSEC server.
Frequently asked questions
- What is CVE-2018-19666?
- The agent in OSSEC through 3.1.0 on Windows allows local users to gain NT AUTHORITY\SYSTEM access via Directory Traversal by leveraging full access to the associated OSSEC server.
- How severe is CVE-2018-19666?
- CVE-2018-19666 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-19666 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-19666?
- CVE-2018-19666 primarily affects Ossec. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-19666?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-19666 published?
- CVE-2018-19666 was published on 2018-11-29 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:ossec:ossec:*:*:*:*:*:*:*:*
- cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*
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