CVE-2026-69522— .NET and Visual Studio Remote Code Execution Vulnerability
Quick assessment
Affected
Microsoft .NET 10.0 runtime
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Microsoft .NET是美国Microsoft公司开源的一款软件开发框架。 Microsoft .NET存在缓冲区错误漏洞，该漏洞源于堆缓冲区溢出，可能导致未经授权的攻击者通过网络执行代码。以下产品及版本受到影响：Microsoft Visual Studio 2022 version 17.14 17.14.40之前版本、Microsoft Visual Studio 2026 version 18.9 18.9.3之前版本、.NET 8.0 8.0.31之前版本、.NET 9.0 9.0.20之
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 13
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | .NET 10.0 runtime | 10.0.0< 10.0.12 |
affected |
| Microsoft | .NET 11.0 runtime | 11.0.0< 11.0 RC1 |
affected |
| Microsoft | .NET 8.0 runtime | 8.0.0< 8.0.31 |
affected |
| Microsoft | .NET 9.0 runtime | 9.0.0< 9.0.20 |
affected |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 | 3.0.0.0< 2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0 |
affected |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | 4.7.0< 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0 |
affected |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | 4.8.0< 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4806.0 |
affected |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 | 4.8.1< 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0 |
affected |
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 | 4.7.0< 4.7.4145.0 |
affected |
| Microsoft | Microsoft .NET Framework 4.8 | 4.8.0< 4.8.4806.0 |
affected |
| Microsoft | Microsoft .NET Framework 4.8.1 | 4.8.0.0< 4.8.9347.0 |
affected |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0< 17.14.40 |
affected |
| Microsoft | Microsoft Visual Studio 2026 version 18.9 | 18.9.0< 18.9.3 |
affected |
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I. Basic Information for CVE-2026-69522
Vulnerability Information
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Vulnerability Title
.NET and Visual Studio Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft .NET 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft .NET是美国Microsoft公司开源的一款软件开发框架。 Microsoft .NET存在缓冲区错误漏洞，该漏洞源于堆缓冲区溢出，可能导致未经授权的攻击者通过网络执行代码。以下产品及版本受到影响：Microsoft Visual Studio 2022 version 17.14 17.14.40之前版本、Microsoft Visual Studio 2026 version 18.9 18.9.3之前版本、.NET 8.0 8.0.31之前版本、.NET 9.0 9.0.20之
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-69522
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
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Vendor Advisories for CVE-2026-69522 (1)
Same Patch Batch · Microsoft · 2026-09-08 · 966 CVEs total
| CVE-2026-83941 | 9.9 CRITICAL | Entra ID Elevation of Privilege Vulnerability |
| CVE-2026-73025 | 9.8 CRITICAL | Windows iSCSI Security Feature Bypass Vulnerability |
| CVE-2026-69431 | 9.8 CRITICAL | Telnet Client Remote Code Execution Vulnerability |
| CVE-2026-66302 | 9.8 CRITICAL | Skype for Business Remote Code Execution Vulnerability |
| CVE-2026-69829 | 9.8 CRITICAL | Windows Shell Remote Code Execution Vulnerability |
| CVE-2026-69715 | 9.8 CRITICAL | Windows Direct Show Remote Code Execution Vulnerability |
| CVE-2026-69595 | 9.8 CRITICAL | Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability |
| CVE-2026-69525 | 9.8 CRITICAL | Remote Desktop Services Remote Code Execution Vulnerability |
| CVE-2026-69769 | 9.8 CRITICAL | Windows HTTP Print Provider Remote Code Execution Vulnerability |
| CVE-2026-70296 | 9.8 CRITICAL | Windows Imaging Component Remote Code Execution Vulnerability |
| CVE-2026-69463 | 9.8 CRITICAL | Windows NTFS Remote Code Execution Vulnerability |
| CVE-2026-77493 | 9.8 CRITICAL | Windows Graphics Component Remote Code Execution Vulnerability |
| CVE-2026-72979 | 9.8 CRITICAL | Windows DHCP Server Remote Code Execution Vulnerability |
| CVE-2026-69768 | 9.8 CRITICAL | Windows RNDIS Remote Code Execution Vulnerability |
| CVE-2026-68839 | 9.8 CRITICAL | Windows USB Mass Storage Class Driver Remote Code Execution Vulnerability |
| CVE-2026-69586 | 9.8 CRITICAL | Microsoft Windows PDF Remote Code Execution Vulnerability |
| CVE-2026-69590 | 9.8 CRITICAL | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability |
| CVE-2026-69496 | 9.8 CRITICAL | Windows Compressed Folder Remote Code Execution Vulnerability |
| CVE-2026-72982 | 9.8 CRITICAL | Windows Netlogon Remote Code Execution Vulnerability |
| CVE-2026-69491 | 9.8 CRITICAL | Microsoft DirectMusic Remote Code Execution Vulnerability |
Showing top 20 of 966 CVEs. View all on vendor page → →
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