CVE-2026-69522

HighCVSS 8.8/10Last modified Oct 30, 2026

Description

Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
Microsoft.NET 10.0 runtime>= 10.0.0, < 10.0.12
Microsoft.NET 11.0 runtime>= 11.0.0, < 11.0 RC1
Microsoft.NET 8.0 runtime>= 8.0.0, < 8.0.31
Microsoft.NET 9.0 runtime>= 9.0.0, < 9.0.20
MicrosoftMicrosoft .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
MicrosoftMicrosoft .NET Framework 3.5 AND 4.7.2>= 4.7.0, < 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0
MicrosoftMicrosoft .NET Framework 3.5 AND 4.8>= 4.8.0, < 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4806.0
MicrosoftMicrosoft .NET Framework 3.5 AND 4.8.1>= 4.8.1, < 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0
MicrosoftMicrosoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2>= 4.7.0, < 4.7.4145.0
MicrosoftMicrosoft .NET Framework 4.8>= 4.8.0, < 4.8.4806.0
MicrosoftMicrosoft .NET Framework 4.8.1>= 4.8.0.0, < 4.8.9347.0
MicrosoftMicrosoft Visual Studio 2022 version 17.14>= 17.14.0, < 17.14.40
MicrosoftMicrosoft Visual Studio 2026 version 18.9>= 18.9.0, < 18.9.3

References

Timeline

Published
Sep 8, 2026
Last modified
Oct 30, 2026
NVD status
Undergoing Analysis

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CVE-2026-69522: High severity, CVSS 8.8 | Vulnix