Back
CVE-2018-8439
A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated…
High8.4EPSS 4.3%
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system, aka "Windows Hyper-V Remote Code Execution Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-0965.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High8.4 | CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.3% · top 8.8% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.4.
Weakness
- Remote Code Execution
- CWE-20 (opens in a new tab)All about CWE-20 and its CVEs
Affected products
Microsoft · Windows Server 2012 R2
- affected (Server Core installation)
- affected Windows RT 8.1
Microsoft · Windows Server 2016
- affected (Server Core installation)
- affected x64-based systems
- affected Version 1607 for x64-based Systems
- affected Version 1703 for x64-based Systems
- affected Version 1709 for x64-based Systems
- affected Version 1803 for x64-based Systems
- affected x64-based Systems
Microsoft · Windows 10 Servers
- affected version 1709 (Server Core Installation)
- affected version 1803 (Server Core Installation)
References (3)
- 105233 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8439 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1041624 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-8439)Record last updated .