What’s Vulnerable › Vulnerabilities
CVE-2018-8421
- Severity: critical (CVSS 9.8 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 29.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2018-09-13 · updated 2026-06-17
- Weakness: CWE-20
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.
Affected products
- Microsoft .NET Framework: 2.0-sp2, 3.0-sp2, 3.5, 3.5.1, 4.5.2, 4.6 (+5)
- Microsoft .NET Framework: 2.0 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 (+63)
References
- http://www.securityfocus.com/bid/105222
- http://www.securitytracker.com/id/1041636
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8421
- http://www.securityfocus.com/bid/105222
- http://www.securitytracker.com/id/1041636
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8421
Get alerted when CVE-2018-8421 or the next vulnerability affects your stack