NCSC NL | Security Advisories

Security Advisory; NCSC-2026-0285 [1.0.0]

Security Advisory: NCSC-2026-0285 [1.0.0]
Publicatie: 11-08-2026 21:55 (Europe/Amsterdam)
Prioriteit: Normaal
Betreft: Kwetsbaarheden verholpen in Microsoft Developer Tools

Kenmerken

Improper Input Validation
Relative Path Traversal
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Control of Generation of Code ('Code Injection')
Heap-based Buffer Overflow
Integer Overflow or Wraparound
Improper Removal of Sensitive Information Before Storage or Transfer
Uncaught Exception
Incorrect Default Permissions
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Unchecked Input for Loop Condition
Not Failing Securely ('Failing Open')
Authorization Bypass Through User-Controlled Key
Protection Mechanism Failure
Out-of-bounds Write
Inclusion of Functionality from Untrusted Control Sphere
Missing Authorization
Incorrect Authorization
Server-Side Request Forgery (SSRF)

Omschrijving

Microsoft heeft kwetsbaarheden verholpen in diverse Developer Tools.

Een kwaadwillende kan de kwetsbaarheden misbruiken om aanvallen uit te voeren die kunnen leiden tot de categorieën schade zoals benoemd in onderstaande tabel.

Voor succesvol misbruik moet de kwaadwillende het slachtoffer misleiden een malafide broncodebestand te importeren en verwerken.

Visual Studio Code CoPilot Chat Extension: 
|----------------|------|-------------------------------------|
| CVE-ID         | CVSS | Impact                              |
|----------------|------|-------------------------------------|
| CVE-2026-65675 | 7.10 | Omzeilen van beveiligingsmaatregel  | 
|----------------|------|-------------------------------------|

Microsoft PowerShell Core: 
|----------------|------|-------------------------------------|
| CVE-ID         | CVSS | Impact                              |
|----------------|------|-------------------------------------|
| CVE-2026-58612 | 7.40 | Toegang tot gevoelige gegevens      | 
| CVE-2026-70337 | 8.80 | Uitvoeren van willekeurige code     | 
|----------------|------|-------------------------------------|

GitHub Copilot and Visual Studio Code: 
|----------------|------|-------------------------------------|
| CVE-ID         | CVSS | Impact                              |
|----------------|------|-------------------------------------|
| CVE-2026-70335 | 7.80 | Verkrijgen van verhoogde rechten    | 
|----------------|------|-------------------------------------|

Visual Studio Code: 
|----------------|------|-------------------------------------|
| CVE-ID         | CVSS | Impact                              |
|----------------|------|-------------------------------------|
| CVE-2026-58650 | 7.80 | Omzeilen van beveiligingsmaatregel  | 
| CVE-2026-59113 | 8.80 | Uitvoeren van willekeurige code     | 
| CVE-2026-47285 | 6.50 | Toegang tot gevoelige gegevens      | 
| CVE-2026-69320 | 8.80 | Uitvoeren van willekeurige code     | 
| CVE-2026-69278 | 7.80 | Omzeilen van beveiligingsmaatregel  | 
| CVE-2026-69306 | 8.20 | Omzeilen van beveiligingsmaatregel  | 
| CVE-2026-70336 | 8.80 | Uitvoeren van willekeurige code     | 
|----------------|------|-------------------------------------|

.NET Framework: 
|----------------|------|-------------------------------------|
| CVE-ID         | CVSS | Impact                              |
|----------------|------|-------------------------------------|
| CVE-2026-62897 | 7.00 | Uitvoeren van willekeurige code     | 
| CVE-2026-62872 | 8.80 | Verkrijgen van verhoogde rechten    | 
| CVE-2026-65810 | 7.80 | Verkrijgen van verhoogde rechten    | 
|----------------|------|-------------------------------------|

Microsoft PowerShell: 
|----------------|------|-------------------------------------|
| CVE-ID         | CVSS | Impact                              |
|----------------|------|-------------------------------------| 
| CVE-2026-59119 | 7.30 | Verkrijgen van verhoogde rechten    | 
| CVE-2026-70338 | 7.80 | Omzeilen van beveiligingsmaatregel  | 
|----------------|------|-------------------------------------|

.NET: 
|----------------|------|-------------------------------------|
| CVE-ID         | CVSS | Impact                              |
|----------------|------|-------------------------------------|
| CVE-2026-62899 | 5.90 | Omzeilen van beveiligingsmaatregel  | 
| CVE-2026-62900 | 5.90 | Toegang tot gevoelige gegevens      | 
| CVE-2026-62901 | 7.50 | Denial-of-Service                   | 
| CVE-2026-62902 | 6.50 | Toegang tot gevoelige gegevens      | 
| CVE-2026-62909 | 7.80 | Verkrijgen van verhoogde rechten    | 
| CVE-2026-58641 | 7.80 | Verkrijgen van verhoogde rechten    | 
| CVE-2026-62871 | 7.80 | Uitvoeren van willekeurige code     | 
| CVE-2026-62886 | 7.80 | Verkrijgen van verhoogde rechten    | 
| CVE-2026-70354 | 7.80 | Uitvoeren van willekeurige code     | 
|----------------|------|-------------------------------------|

Visual Studio Code - Python extension: 
|----------------|------|-------------------------------------|
| CVE-ID         | CVSS | Impact                              |
|----------------|------|-------------------------------------|
| CVE-2026-54981 | 7.80 | Omzeilen van beveiligingsmaatregel  | 
|----------------|------|-------------------------------------|

Oplossingen

Microsoft heeft updates beschikbaar gesteld waarmee de beschreven kwetsbaarheden worden verholpen. We raden u aan om deze updates te installeren. Meer informatie over de kwetsbaarheden, de installatie van de updates en eventuele work-arounds vindt u op:

https://portal.msrc.microsoft.com/en-us/security-guidance

CVE's

CVE-2026-58612 - CVSS (v3) 7.4
CVE-2026-59119 - CVSS (v3) 7.3
CVE-2026-70338 - CVSS (v3) 7.8
CVE-2026-70337 - CVSS (v3) 8.8
CVE-2026-58650 - CVSS (v3) 7.8
CVE-2026-59113 - CVSS (v3) 8.8
CVE-2026-47285 - CVSS (v3) 6.5
CVE-2026-69320 - CVSS (v3) 8.8
CVE-2026-69278 - CVSS (v3) 7.8
CVE-2026-69306 - CVSS (v3) 8.2
CVE-2026-70335 - CVSS (v3) 7.8
CVE-2026-70336 - CVSS (v3) 8.8
CVE-2026-62897 - CVSS (v3) 7.0
CVE-2026-62872 - CVSS (v3) 8.8
CVE-2026-65810 - CVSS (v3) 7.8
CVE-2026-62899 - CVSS (v3) 5.9
CVE-2026-62900 - CVSS (v3) 5.9
CVE-2026-62901 - CVSS (v3) 7.5
CVE-2026-62902 - CVSS (v3) 6.5
CVE-2026-62909 - CVSS (v3) 7.8
CVE-2026-58641 - CVSS (v3) 7.8
CVE-2026-62871 - CVSS (v3) 7.8
CVE-2026-62886 - CVSS (v3) 7.8
CVE-2026-70354 - CVSS (v3) 7.8
CVE-2026-65675 - CVSS (v3) 7.1
CVE-2026-54981 - CVSS (v3) 7.8

Producten

Microsoft

.NET 10.0 installed on Linux

.NET 10.0 installed on Mac OS

.NET 10.0 installed on Windows

.NET 8.0 installed on Linux

.NET 8.0 installed on Mac OS

.NET 8.0 installed on Windows

.NET 9.0 installed on Linux

.NET 9.0 installed on Mac OS

.NET 9.0 installed on Windows

Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems

Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems

Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016

Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation)

Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems

Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems

Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems

Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019

Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)

Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems

Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for ARM64-based Systems

Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems

Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit Systems

Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based Systems

Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems

Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit Systems

Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems

Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems

Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019

Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)

Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022

Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 (Server Core installation)

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for 32-bit Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for ARM64-based Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for x64-based Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for 32-bit Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for ARM64-based Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for x64-based Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for ARM64-based Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for x64-based Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 24H2 for ARM64-based Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 24H2 for x64-based Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 25H2 for ARM64-based Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 25H2 for x64-based Systems

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 (Server Core installation)

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025 (Server Core installation)

Microsoft .NET Framework 3.5 on Windows 11 Version 26H1 for ARM64-based Systems

Microsoft .NET Framework 3.5 on Windows 11 version 26H1 for x64-based Systems

Microsoft .NET Framework 3.5 on Windows Server 2012

Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation)

Microsoft .NET Framework 3.5 on Windows Server 2012 R2

Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation)

Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012

Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation)

Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2

Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation)

Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems

Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems

Microsoft .NET Framework 4.8 on Windows Server 2012

Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)

Microsoft .NET Framework 4.8 on Windows Server 2012 R2

Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)

Microsoft .NET Framework 4.8 on Windows Server 2016

Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)

Microsoft .NET Framework 4.8.1 on Windows 11 Version 26H1 for ARM64-based Systems

Microsoft .NET Framework 4.8.1 on Windows 11 version 26H1 for x64-based Systems

Microsoft Visual Studio 2022 version 17.14

Microsoft Visual Studio 2026 version 18.8

Microsoft Visual Studio Code CoPilot Chat Extension

PowerShell 7.4

PowerShell 7.5

PowerShell 7.6

Python extension for Visual Studio Code

Visual Studio Code

Disclaimer

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