CVE-2018-8421
9.8
CRITICAL · CVSS 3.0 · EPSS 29.1% (pctl 98)
Patch early
EPSS 29.1% — above the 10% action threshold.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 29.08% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-20 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-09-13 |
| Last modified | 2026-06-17 |
Affected (9)
| Vendor | Product |
|---|---|
| microsoft | .net framework |
| microsoft | windows 10 |
| microsoft | windows 7 |
| microsoft | windows 8.1 |
| microsoft | windows rt 8.1 |
| microsoft | windows server |
| microsoft | windows server 2008 |
| microsoft | windows server 2012 |
| microsoft | windows server 2016 |
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
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