8.4

CVE-2018-8439: microsoft windows_10 Improper Input Validation

CVSS: 8.4v3.0HighModified
Published 13-09-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-8439 is a high (CVSS 8.4) Improper Input Validation vulnerability in microsoft windows_10. EPSS estimates a 4.31% chance of exploitation in the next 30 days, higher than 91% of scored vulnerabilities.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.4/10
010
High · v3.0 (NVD)
EPSS score
4.31%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-09-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

4.31%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

0.00 pp

From 4.31% on 20-09-2026

20-09-202620-10-2026
EPSS score
4.31%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft7 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_8.1x64-based systems
  • windows_rt_8.1Windows RT 8.1 | na
  • windows server 2012r2

1 vendor · 7 products

References

3 links