10

CVE-2018-8421: microsoft microsoft .net framework Improper Input Validation

CVSS: 10.0v2.0HighModified
Published 13-09-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-8421 is a high (CVSS 10.0) Improper Input Validation vulnerability in microsoft microsoft .net framework. EPSS estimates a 29.07% chance of exploitation in the next 30 days, higher than 98.1% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
29.07%
0%100%
High · 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 Microsoft .NET Framework processes untrusted input, aka ".NET Framework Remote Code Execution Vulnerability." This affects Microsoft .NET Framework 4.6, Microsoft .NET Framework 3.5, Microsoft .NET Framework 4.7/4.7.1/4.7.2, Microsoft .NET Framework 3.0, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 4.7.2, Microsoft .NET Framework 2.0.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

29.07%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 29.07% on 19-09-2026

19-09-202619-10-2026
EPSS score
29.07%

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

Microsoft2 products
  • microsoft .net frameworkEOL2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 | 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 | 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 | 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 | 3.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 | 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 | 3.5 on Windows 10 for 32-bit Systems | 3.5 on Windows 10 for x64-based Systems | 3.5 on Windows 10 Version 1607 for 32-bit Systems | 3.5 on Windows 10 Version 1607 for x64-based Systems | 3.5 on Windows 10 Version 1703 for 32-bit Systems | 3.5 on Windows 10 Version 1703 for x64-based Systems | 3.5 on Windows 10 Version 1709 for 32-bit Systems | 3.5 on Windows 10 Version 1709 for x64-based Systems | 3.5 on Windows 10 Version 1803 for 32-bit Systems | 3.5 on Windows 10 Version 1803 for x64-based Systems | 3.5 on Windows 8.1 for 32-bit systems | 3.5 on Windows 8.1 for x64-based systems | 3.5 on Windows Server 2012 | 3.5 on Windows Server 2012 (Server Core installation) | 3.5 on Windows Server 2012 R2 | 3.5 on Windows Server 2012 R2 (Server Core installation) | 3.5 on Windows Server 2016 | 3.5 on Windows Server 2016 (Server Core installation) | 3.5 on Windows Server, version 1709 (Server Core Installation) | 3.5 on Windows Server, version 1803 (Server Core Installation) | 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 | 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 | 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 | 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 | 4.5.2 on Windows 8.1 for 32-bit systems | 4.5.2 on Windows 8.1 for x64-based systems | 4.5.2 on Windows RT 8.1 | 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 | 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 | 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | 4.5.2 on Windows Server 2012 | 4.5.2 on Windows Server 2012 (Server Core installation) | 4.5.2 on Windows Server 2012 R2 | 4.5.2 on Windows Server 2012 R2 (Server Core installation) | 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 | 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 | 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems | 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems | 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 | 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation) | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1 | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1 | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for 32-bit systems | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for x64-based systems | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows RT 8.1 | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation) | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2 | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation) | 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems | 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems | 4.7.1/4.7.2 on Windows Server, version 1709 (Server Core Installation) | 4.7.2 on Windows 10 Version 1803 for 32-bit Systems | 4.7.2 on Windows 10 Version 1803 for x64-based Systems | 4.7.2 on Windows Server, version 1803 (Server Core Installation) | 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for 32-bit Systems | 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for x64-based Systems
  • .net_framework2.0:sp2 | 3.0:sp2 | 3.5 | 3.5.1 | 4.5.2 | 4.6 | 4.6.2 | 4.7 | 4.7.1 | 4.7.2 | 4.6.1

1 vendor · 2 products

References

3 links