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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Microsoft .NET 10.0 affected
Version Status Constraints
10.0.0 affected < 10.0.12
Microsoft .NET 11.0 affected
Version Status Constraints
11.0.0 affected < 11.0 RC1
Microsoft .NET 8.0 affected
Version Status Constraints
8.0.0 affected < 8.0.31
Microsoft .NET 9.0 affected
Version Status Constraints
9.0.0 affected < 9.0.20
Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 affected
Version Status Constraints
3.0.0.0 affected < 2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 affected
Version Status Constraints
4.7.0 affected < 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0
Microsoft Microsoft .NET Framework 3.5 AND 4.8 affected
Version Status Constraints
4.8.0 affected < 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4806.0
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 affected
Version Status Constraints
4.8.1 affected < 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 affected
Version Status Constraints
4.7.0 affected < 4.7.4145.0
Microsoft Microsoft .NET Framework 4.8 affected
Version Status Constraints
4.8.0 affected < 4.8.4806.0
Microsoft Microsoft .NET Framework 4.8.1 affected
Version Status Constraints
4.8.0.0 affected < 4.8.9347.0
Microsoft Microsoft Visual Studio 2022 version 17.14 affected
Version Status Constraints
17.14.0 affected < 17.14.40
Microsoft Microsoft Visual Studio 2026 version 18.9 affected
Version Status Constraints
18.9.0 affected < 18.9.3

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Microsoft Subscribe
.net Subscribe
.net Framework Subscribe
Visual Studio 2022 Subscribe
Visual Studio 2026 Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69522 cve-icon cve-icon
History

Tue, 08 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Title .NET and Visual Studio Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft .net
Microsoft .net Framework
Microsoft visual Studio 2022
Microsoft visual Studio 2026
Weaknesses CWE-122
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net
Microsoft .net Framework
Microsoft visual Studio 2022
Microsoft visual Studio 2026
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-09-08T19:28:37.021Z

Reserved: 2026-08-03T21:09:40.782Z

Link: CVE-2026-69522

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-08T18:19:19.697

Modified: 2026-09-08T18:39:34.660

Link: CVE-2026-69522

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses