CVE-2018-8434: microsoft windows_10 Improper Input Validation
Vulnerability summary
CVE-2018-8434 is a medium (CVSS 5.4) Improper Input Validation vulnerability in microsoft windows_10. EPSS estimates a 3.49% chance of exploitation in the next 30 days, higher than 89% of scored vulnerabilities.
Timeline
- 13-09-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An information disclosure vulnerability exists when Windows Hyper-V on a host operating system fails to properly validate input from an authenticated user on a guest operating system, aka "Windows Hyper-V Information Disclosure Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
3.49%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
0.00 pp
From 3.49% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Affected systems
Microsoft10 products
- windows_10Version 1607 for x64-based Systems | Version 1703 for x64-based Systems | Version 1709 for x64-based Systems | Version 1803 for x64-based Systems | x64-based Systems | na | 1607 | 1703 | 1709 | 1803
- windows 10 serversversion 1709 (Server Core Installation) | version 1803 (Server Core Installation)
- windows_7x64-based Systems Service Pack 1 | na
- windows_8.1x64-based systems | na
- windows_rt_8.1Windows RT 8.1
1 vendor · 10 products
References
3 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8434X Refsource CONFIRMPatchVendor Advisory