CVE-2018-0809
CVE-2018-0809 is a high-severity vulnerability in Microsoft Windows 10 with a CVSS 3.x base score of 7.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.0)
- CVSS v2: 6.9
- EPSS exploit prediction: 1% (64th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Windows 10
- Published:
- Last modified:
Description
The Windows kernel in Windows 10, versions 1703 and 1709, and Windows Server, version 1709 allows an elevation of privilege vulnerability due to the way objects are handled in memory, aka "Windows Elevation of Privilege Vulnerability". This CVE is unique from CVE-2018-0742, CVE-2018-0756, CVE-2018-0820 and CVE-2018-0843.
Frequently asked questions
- What is CVE-2018-0809?
- The Windows kernel in Windows 10, versions 1703 and 1709, and Windows Server, version 1709 allows an elevation of privilege vulnerability due to the way objects are handled in memory, aka "Windows Elevation of Privilege Vulnerability". This CVE is unique from CVE-2018-0742, CVE-2018-0756, CVE-2018-0820 and CVE-2018-0843.
- How severe is CVE-2018-0809?
- CVE-2018-0809 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-0809 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-0809?
- CVE-2018-0809 primarily affects Microsoft Windows 10. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-0809?
- 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-2018-0809 published?
- CVE-2018-0809 was published on 2018-02-15 and last updated on 2026-06-17.
References
- http://www.securityfocus.com/bid/102933
- http://www.securitytracker.com/id/1040373
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0809
Affected products (3)
- cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*
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