CVE-2020-1046
.NET Framework Remote Code Execution Vulnerability
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
A remote code execution vulnerability exists when Microsoft .NET Framework processes input. An attacker who successfully exploited this vulnerability could take control of an affected system. To exploit the vulnerability, an attacker would need to be able to upload a specially crafted file to a web application. The security update addresses the vulnerability by correcting how .NET Framework processes input.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.8% · top 10% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
- Remote Code Execution
Affected products
Microsoft · Microsoft .NET Framework 3.5
- affected 3.5.0 – < publication
Microsoft · Microsoft .NET Framework 3.5 AND 4.8
- affected 4.8.0 – < publication
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2
- affected 4.7.0 – < publication
Microsoft · Microsoft .NET Framework 2.0 Service Pack 2
- affected 2.0.0 – < publication
Microsoft · Microsoft .NET Framework 3.5.1
- affected 3.5.0 – < publication
References (1)
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1046 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-1046)Record last updated .