.NET and Visual Studio
CVE-2023-21808 — .NET and Visual Studio Remote Code Execution Vulnerability
Executive Summary
None
Overview
7.8
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 7.3
EPSS Score
0.01148
probability of exploitation in the next 30 days
0.62633 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
55 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| .NET 6.0 | 5023288 (Security Update) |
Critical | Remote Code Execution | Maybe |
| .NET 7.0 | 5023286 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 and 4.6.2 on Windows 10 for 32-bit Systems | 5022858 (Security Update) |
Important | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 and 4.6.2 on Windows 10 for x64-based Systems | 5022858 (Security Update) |
Important | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1607 for 32-bit Systems | 5022838 (Security Update) |
Important | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1607 for x64-based Systems | 5022838 (Security Update) |
Important | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems | 5022782 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems | 5022782 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems | 5022782 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016 | 5022838 (Security Update) |
Important | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016 (Server Core installation) | 5022838 (Security Update) |
Important | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 | 5022782 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation) | 5022782 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1607 for 32-bit Systems | 5022503 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1607 for x64-based Systems | 5022503 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems | 5022782 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems | 5022782 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 20H2 for 32-bit Systems | 5022727 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 20H2 for ARM64-based Systems | 5022727 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit Systems | 5022728 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based Systems | 5022728 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems | 5022728 (Monthly Rollup) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit Systems | 5022729 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems | 5022729 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems | 5022729 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for ARM64-based Systems | 5022730 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for x64-based Systems | 5022730 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2016 | 5022503 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2016 (Server Core installation) | 5022503 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 | 5022782 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation) | 5022782 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 | 5022735 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 (Server Core installation) | 5022735 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 20H2 for 32-bit Systems | 5022727 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 20H2 for ARM64-based Systems | 5022727 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for 32-bit Systems | 5022728 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for ARM64-based Systems | 5022728 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for x64-based Systems | 5022728 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for 32-bit Systems | 5022729 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for ARM64-based Systems | 5022729 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for x64-based Systems | 5022729 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 21H2 for ARM64-based Systems | 5022730 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 21H2 for x64-based Systems | 5022730 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 for ARM64-based Systems | 5022497 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 for x64-based Systems | 5022497 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 | 5022735 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 (Server Core installation) | 5022735 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft .NET Framework 4.6.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 5022734 (Monthly Rollup) 5022786 (Security Only) Important Remote Code Execution 5018550, 5021094 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.7.04038.06 4.7.4038.05 Maybe 5022734 5022786 Microsoft .NET Framework 4.6.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5022734 (Monthly Rollup) 5022786 (Security Only) Important Remote Code Execution 5018550, 5021094 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.7.04038.06 4.7.4038.05 Maybe 5022734 5022786 Microsoft .NET Framework 4.6.2 on Windows Server 2008 for x64-based Systems Service Pack 2 5022734 (Monthly Rollup) 5022786 (Security Only) Important Remote Code Execution 5018550, 5021094 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.7.04038.06 4.7.4038.05 Maybe 5022734 5022786 Microsoft .NET Framework 4.6.2 on Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5022734 (Monthly Rollup) 5022786 (Security Only) Important Remote Code Execution 5018550, 5021094 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.7.04038.06 4.7.4038.05 Maybe 5022734 5022786 Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 5022731 (Monthly Rollup) 5022783 (Security Only) Important Remote Code Execution 5018547, 5021091 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.7.04614.08 4.7.04038.05 Maybe 5022731 5022783 Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5022731 (Monthly Rollup) 5022783 (Security Only) Important Remote Code Execution 5018547, 5021091 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.7.04614.08 4.7.04038.05 Maybe 5022731 5022783 Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 5022732 (Monthly Rollup) 5022784 (Security Only) Important Remote Code Execution 5018548, 5021092 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.7.04038.03 4.7.04038.02 Maybe 5022732 5022784 Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation) 5022732 (Monthly Rollup) 5022784 (Security Only) Important Remote Code Execution 5018548, 5021092 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.7.04038.03 4.7.04038.02 Maybe 5022732 5022784 Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 5022733 (Monthly Rollup) 5022785 (Security Only) Important Remote Code Execution 5018549, 5021093 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.7.04038.03 4.7.04038.02 Maybe 5022733 5022785 Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation) 5022733 (Monthly Rollup) 5022785 (Security Only) Important Remote Code Execution 5018549, 5021093 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.7.04038.03 4.7.04038.02 Maybe 5022733 5022785 Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 5022731 (Monthly Rollup) 5022783 (Security Only) Important Remote Code Execution 5018547, 5021091 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.8.4614.08 4.8.4614.07 Maybe 5022731 5022783 Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5022731 (Monthly Rollup) 5022783 (Security Only) Important Remote Code Execution 5018547, 5021091 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.8.4614.08 4.8.4614.07 Maybe 5022731 5022783 Microsoft .NET Framework 4.8 on Windows Server 2012 5022732 (Monthly Rollup) 5022784 (Security Only) Important Remote Code Execution 5018548, 5021092 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.8.04614.05 4.8.04614.03 Maybe 5022732 5022784 Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation) 5022732 (Monthly Rollup) 5022784 (Security Only) Important Remote Code Execution 5018548, 5021092 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.8.04614.05 4.8.04614.03 Maybe 5022732 5022784 Microsoft .NET Framework 4.8 on Windows Server 2012 R2 5022733 (Monthly Rollup) 5022785 (Security Only) Important Remote Code Execution 5018549, 5021093 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.8.04614.05 4.8.04614.03 Maybe 5022733 5022785 Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation) 5022733 (Monthly Rollup) 5022785 (Security Only) Important Remote Code Execution 5018549, 5021093 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 4.8.04614.05 4.8.04614.03 Maybe 5022733 5022785 Microsoft Visual Studio 2013 Update 5 | 5026610 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2015 Update 3 | 5025792 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2022 version 17.0 | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2022 version 17.2 | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2022 version 17.4 | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| PowerShell 7.2 | Release Notes (Security Update) |
Important | Remote Code Execution | Maybe |
Patches
16 patches
| Article | Type | Restart |
|---|---|---|
5023288 |
Security Update | Maybe |
5023286 |
Security Update | Maybe |
5022858 |
Security Update | Yes |
5022838 |
Security Update | Yes |
5022782 |
Security Update | Maybe |
5022503 |
Security Update | Maybe |
5022727 |
Security Update | Maybe |
5022728 |
Security Update | Maybe |
5022728 |
Monthly Rollup | Maybe |
5022729 |
Security Update | Maybe |
5022730 |
Security Update | Maybe |
5022735 |
Security Update | Maybe |
5022497 |
Security Update | Maybe |
5026610 |
Security Update | Maybe |
5025792 |
Security Update | Maybe |
Release Notes |
Security Update | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
goodbyeselene
References
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