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CVE-2026-69522

.NET and Visual Studio Remote Code Execution Vulnerability

CVSS 3.1 8.8 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 31 Oct 2026 18:04:47 UTC. Read the latest advisory.

cve-program · CVE-2026-69522

Published

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

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-69522

Published

.NET 10.0 runtime

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": ".NET 10.0 runtime",
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "10.0.12",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

.NET 11.0 runtime

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": ".NET 11.0 runtime",
                    "versions": [
                        {
                            "version": "11.0.0",
                            "lessThan": "11.0 RC1",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

.NET 8.0 runtime

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": ".NET 8.0 runtime",
                    "versions": [
                        {
                            "version": "8.0.0",
                            "lessThan": "8.0.31",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

.NET 9.0 runtime

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": ".NET 9.0 runtime",
                    "versions": [
                        {
                            "version": "9.0.0",
                            "lessThan": "9.0.20",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2",
                    "platforms": [
                        "Windows 10 Version 1607 for 32-bit Systems",
                        "Windows 10 Version 1607 for x64-based Systems",
                        "Windows Server 2016"
                    ],
                    "versions": [
                        {
                            "version": "3.0.0.0",
                            "lessThan": "2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft .NET Framework 3.5 AND 4.7.2

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft .NET Framework 3.5 AND 4.7.2",
                    "platforms": [
                        "Windows 10 Version 1809 for 32-bit Systems",
                        "Windows 10 Version 1809 for ARM64-based Systems",
                        "Windows 10 Version 1809 for x64-based Systems",
                        "Windows Server 2019"
                    ],
                    "versions": [
                        {
                            "version": "4.7.0",
                            "lessThan": "2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft .NET Framework 3.5 AND 4.8

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft .NET Framework 3.5 AND 4.8",
                    "platforms": [
                        "Windows 10 Version 1809 for 32-bit Systems",
                        "Windows 10 Version 1809 for ARM64-based Systems",
                        "Windows 10 Version 1809 for x64-based Systems",
                        "Windows 10 Version 21H2 for 32-bit Systems",
                        "Windows 10 Version 21H2 for ARM64-based Systems",
                        "Windows 10 Version 21H2 for x64-based Systems",
                        "Windows 10 Version 22H2 for 32-bit Systems",
                        "Windows 10 Version 22H2 for ARM64-based Systems",
                        "Windows 10 Version 22H2 for x64-based Systems",
                        "Windows Server 2019",
                        "Windows Server 2022"
                    ],
                    "versions": [
                        {
                            "version": "4.8.0",
                            "lessThan": "2.0.50727.9070 & 3.0.30729.9068 & 4.8.4806.0",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft .NET Framework 3.5 AND 4.8.1

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft .NET Framework 3.5 AND 4.8.1",
                    "platforms": [
                        "Windows 10 Version 21H2 for 32-bit Systems",
                        "Windows 10 Version 21H2 for ARM64-based Systems",
                        "Windows 10 Version 21H2 for x64-based Systems",
                        "Windows 10 Version 22H2 for 32-bit Systems",
                        "Windows 10 Version 22H2 for ARM64-based Systems",
                        "Windows 10 Version 22H2 for x64-based Systems",
                        "Windows 11 Version 23H2 for ARM64-based Systems",
                        "Windows 11 Version 23H2 for x64-based Systems",
                        "Windows 11 Version 24H2 for ARM64-based Systems",
                        "Windows 11 Version 24H2 for x64-based Systems",
                        "Windows 11 Version 25H2 for ARM64-based Systems",
                        "Windows 11 Version 25H2 for x64-based Systems",
                        "Windows Server 2022",
                        "Windows Server 2025"
                    ],
                    "versions": [
                        {
                            "version": "4.8.1",
                            "lessThan": "2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2",
                    "platforms": [
                        "Windows Server 2012",
                        "Windows Server 2012 R2"
                    ],
                    "versions": [
                        {
                            "version": "4.7.0",
                            "lessThan": "4.7.4145.0",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft .NET Framework 4.8

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft .NET Framework 4.8",
                    "platforms": [
                        "Windows 10 Version 1607 for 32-bit Systems",
                        "Windows 10 Version 1607 for x64-based Systems",
                        "Windows Server 2012",
                        "Windows Server 2012 R2",
                        "Windows Server 2016"
                    ],
                    "versions": [
                        {
                            "version": "4.8.0",
                            "lessThan": "4.8.4806.0",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft .NET Framework 4.8.1

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft .NET Framework 4.8.1",
                    "platforms": [
                        "Windows 11 Version 26H1 for ARM64-based Systems",
                        "Windows 11 version 26H1 for x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "4.8.0.0",
                            "lessThan": "4.8.9347.0",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft Visual Studio 2022 version 17.14

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft Visual Studio 2022 version 17.14",
                    "versions": [
                        {
                            "version": "17.14.0",
                            "lessThan": "17.14.40",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft Visual Studio 2026 version 18.9

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft Visual Studio 2026 version 18.9",
                    "versions": [
                        {
                            "version": "18.9.0",
                            "lessThan": "18.9.3",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 12 Nov 16:29 UTC · 265 of 275 readable · 263 fully read · documentation 469/469 current

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