.NET and Visual Studio Elevation of Privilege Vulnerability

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-102869
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-13 19:17:51 UTC
Updated2026-10-14 04:18:07 UTC
DescriptionAccess of resource using incompatible type ('type confusion') in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

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

Problem Types: CWE-843 | CWE-843 CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1CNACVSS8.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 affected 3.0.0.0 2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0 custom Windows 10 version 1607, Windows Server 2016, Windows Server 2019
CNA Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 affected 4.7.0 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 custom Windows 10 version 1809
CNA Microsoft Microsoft .NET Framework 3.5 AND 4.8 affected 4.8.0 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 custom Windows 10 version 1809, Windows 10 version 21H2, Windows 10 version 22H2, Windows Server 2019, Windows Server 2022
CNA Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 affected 4.8.1 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 custom Windows 10 version 21H2, Windows 10 version 22H2, Windows 11 version 23H2, Windows 11 version 24H2, Windows 11 version 25H2, Windows 11 version 26H2, Windows Server 2022, Windows Server 2025
CNA Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 affected 4.7.0 4.7.4150.0 custom Windows Server 2012, Windows Server 2012 R2
CNA Microsoft Microsoft .NET Framework 4.8 affected 4.8.0 4.8.4811.0 custom Windows 10 version 1607, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016
CNA Microsoft Microsoft .NET Framework 4.8.1 affected 4.8.0.0 4.8.9363.0 custom Windows 11 version 26H1
CNA Microsoft Microsoft Visual Studio 2022 Version 17.14 affected 17.14.0 17.14.42 custom Not specified
CNA Microsoft Microsoft Visual Studio 2026 Version 18.10 affected 18.10.0 18.10.4 custom Not specified

References

ReferenceSourceLinkTags
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102869 [email protected] msrc.microsoft.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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