NVD

CVE-2026-35433 Detail

Description

Improper input validation in .NET allows an unauthorized attacker to elevate privileges locally.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

Nist CVSS score does not match with CNA score

CNA: Microsoft Corporation

Base Score: 7.3 HIGH

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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35433	Microsoft Corporation	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information	NIST
CWE-20	Improper Input Validation	Microsoft Corporation
CWE-190	Integer Overflow or Wraparound	Microsoft Corporation

Known Affected Software Configurations Switch to CPE 2.2

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Change History

8 change records found show changes

Initial Analysis by NIST 6/18/2026 1:23:43 PM

Action	Type	New Value
Added	CWE	NVD-CWE-noinfo
Added	CPE Configuration	AND OR cpe:2.3:a:microsoft:.net::::::::* versions from (including) 10.0.0 up to (excluding) 10.0.8 cpe:2.3:a:microsoft:.net::::::::* versions from (including) 8.0.0 up to (excluding) 8.0.27 cpe:2.3:a:microsoft:.net::::::::* versions from (including) 9.0.0 up to (excluding) 9.0.16 OR cpe:2.3:o:microsoft:windows:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:a:microsoft:.net_framework:3.5::::::: cpe:2.3:a:microsoft:.net_framework:4.7.2::::::: OR cpe:2.3:o:microsoft:windows_10_1809:-::::::x64: cpe:2.3:o:microsoft:windows_10_1809:-::::::arm64:
Added	CPE Configuration	AND OR cpe:2.3:a:microsoft:.net_framework:3.5::::::: cpe:2.3:a:microsoft:.net_framework:4.8.1::::::: OR cpe:2.3:o:microsoft:windows_server_2022:-:::::::* cpe:2.3:o:microsoft:windows_11_23h2:-::::::arm64: cpe:2.3:o:microsoft:windows_11_23h2:-::::::x64: cpe:2.3:o:microsoft:windows_11_24h2:-::::::x64: cpe:2.3:o:microsoft:windows_11_24h2:-::::::arm64: cpe:2.3:o:microsoft:windows_11_25h2:-::::::arm64: cpe:2.3:o:microsoft:windows_11_25h2:-::::::x64: cpe:2.3:o:microsoft:windows_11_26h1:-::::::arm64: cpe:2.3:o:microsoft:windows_11_26h1:-::::::x64: cpe:2.3:o:microsoft:windows_server_2025:-::::::x64:
Added	CPE Configuration	AND OR cpe:2.3:a:microsoft:.net_framework:3.5::::::: cpe:2.3:a:microsoft:.net_framework:4.8::::::: OR cpe:2.3:o:microsoft:windows_server_2022:-:::::::* cpe:2.3:o:microsoft:windows_10_1809:-::::::x64: cpe:2.3:o:microsoft:windows_10_21h2:-::::::x64: cpe:2.3:o:microsoft:windows_10_22h2:-::::::x64: cpe:2.3:o:microsoft:windows_10_21h2:-::::::arm64: cpe:2.3:o:microsoft:windows_10_22h2:-::::::arm64: cpe:2.3:o:microsoft:windows_10_1809:-::::::arm64:
Added	CPE Configuration	AND OR cpe:2.3:a:microsoft:.net_framework:3.5::::::: OR cpe:2.3:o:microsoft:windows_server_2012:r2:::::::* cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:a:microsoft:.net_framework:4.8::::::: OR cpe:2.3:o:microsoft:windows_server_2012:r2:::::::* cpe:2.3:o:microsoft:windows_server_2016:-:::::::* cpe:2.3:o:microsoft:windows_server_2012:-:::::::* cpe:2.3:o:microsoft:windows_10_1607:-::::::x64:
Added	Reference Type	Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35433 Types: Vendor Advisory

CVE Modified by Microsoft Corporation 6/17/2026 4:16:55 PM

Action

Type

Old Value

New Value

Changed

Description

Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.

Improper input validation in .NET allows an unauthorized attacker to elevate privileges locally.

Changed

Affected

Record truncated, showing 2048 of 2732 characters.
View Entire Change Record

[{"vendor":"Microsoft","product":".NET 10.0","versions":[{"version":"10.0.0","lessThan":"10.0.8","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":".NET 8.0","versions":[{"version":"8.0.0","lessThan":"8.0.27","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":".NET 9.0","versions":[{"version":"9.0.0","lessThan":"9.0.16","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5","platforms":["Windows Server 2012","Windows Server 2012 R2"],"versions":[{"version":"3.5.0","lessThan":"4.8.9334.0 and 4.8.4802.0","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.7.2","platforms":["Windows 10 Version 1809 for ARM64-based Systems","Windows 10 Version 1809 for x64-based Systems"],"versions":[{"version":"4.7.0","lessThan":"4.8.9334.0 and 4.8.4802.0","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.8","platforms":["Windows 10 Version 1809 for ARM64-based Systems","Windows 10 Version 1809 for x64-based Systems","Windows 10 Version 21H2 for ARM64-based Systems","Windows 10 Version 21H2 for x64-based Systems","Windows 10 Version 22H2 for ARM64-based Systems","Windows 10 Version 22H2 for x64-based Systems","Windows 11 version 21H2 for ARM64-based Systems","Windows Server 2022"],"versions":[{"version":"4.8.0","lessThan":"4.8.9334.0 and 4.8.4802.0","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.8.1","platforms":["Windows 10 Version 21H2 for ARM64-based Systems","Windows 10 Version 21H2 for x64-based Systems","Windows 11 Version 22H2 for ARM64-based Systems","Windows 11 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-base

Record truncated, showing 2048 of 2528 characters.
View Entire Change Record

[{"vendor":"Microsoft","product":".NET 10.0","versions":[{"version":"10.0.0","lessThan":"10.0.8","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":".NET 8.0","versions":[{"version":"8.0.0","lessThan":"8.0.27","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":".NET 9.0","versions":[{"version":"9.0.0","lessThan":"9.0.16","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5","platforms":["Windows Server 2012","Windows Server 2012 R2"],"versions":[{"version":"3.5.0","lessThan":"4.8.9334.0 and 4.8.4802.0","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.7.2","platforms":["Windows 10 Version 1809 for ARM64-based Systems","Windows 10 Version 1809 for x64-based Systems"],"versions":[{"version":"4.7.0","lessThan":"4.8.9334.0 and 4.8.4802.0","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.8","platforms":["Windows 10 Version 1809 for ARM64-based Systems","Windows 10 Version 1809 for x64-based Systems","Windows 10 Version 21H2 for ARM64-based Systems","Windows 10 Version 21H2 for x64-based Systems","Windows 10 Version 22H2 for ARM64-based Systems","Windows 10 Version 22H2 for x64-based Systems","Windows Server 2022"],"versions":[{"version":"4.8.0","lessThan":"4.8.9334.0 and 4.8.4802.0","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.8.1","platforms":["Windows 10 Version 21H2 for ARM64-based Systems","Windows 10 Version 21H2 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 11 Version 26H1 for ARM64-based Systems","Windows 11 version 26H1 for x64-based

CVE Modified by Microsoft Corporation 6/17/2026 6:40:35 AM

Action

Type

Old Value

New Value

Added

Affected

Record truncated, showing 2048 of 2732 characters.
View Entire Change Record

[{"vendor":"Microsoft","product":".NET 10.0","versions":[{"version":"10.0.0","lessThan":"10.0.8","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":".NET 8.0","versions":[{"version":"8.0.0","lessThan":"8.0.27","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":".NET 9.0","versions":[{"version":"9.0.0","lessThan":"9.0.16","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5","platforms":["Windows Server 2012","Windows Server 2012 R2"],"versions":[{"version":"3.5.0","lessThan":"4.8.9334.0 and 4.8.4802.0","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.7.2","platforms":["Windows 10 Version 1809 for ARM64-based Systems","Windows 10 Version 1809 for x64-based Systems"],"versions":[{"version":"4.7.0","lessThan":"4.8.9334.0 and 4.8.4802.0","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.8","platforms":["Windows 10 Version 1809 for ARM64-based Systems","Windows 10 Version 1809 for x64-based Systems","Windows 10 Version 21H2 for ARM64-based Systems","Windows 10 Version 21H2 for x64-based Systems","Windows 10 Version 22H2 for ARM64-based Systems","Windows 10 Version 22H2 for x64-based Systems","Windows 11 version 21H2 for ARM64-based Systems","Windows Server 2022"],"versions":[{"version":"4.8.0","lessThan":"4.8.9334.0 and 4.8.4802.0","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.8.1","platforms":["Windows 10 Version 21H2 for ARM64-based Systems","Windows 10 Version 21H2 for x64-based Systems","Windows 11 Version 22H2 for ARM64-based Systems","Windows 11 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-base

New CVE Received from Microsoft Corporation 5/12/2026 2:17:13 PM

Action	Type	New Value
Added	Description	Improper input validation in .NET allows an unauthorized attacker to elevate privileges locally.
Added	CVSS V3.1	AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Added	CWE	CWE-20
Added	CWE	CWE-190
Added	Reference	https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35433

Quick Info

CVE Dictionary Entry:
CVE-2026-35433
NVD Published Date:
05/12/2026
NVD Last Modified:
06/18/2026
Source:
Microsoft Corporation

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2026-35433 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

Initial Analysis by NIST 6/18/2026 1:23:43 PM

CVE Modified by Microsoft Corporation 6/17/2026 4:16:55 PM

CVE Modified by CISA-ADP 6/17/2026 6:40:35 AM

CVE Modified by Microsoft Corporation 6/17/2026 6:40:35 AM

CVE Modified by Microsoft Corporation 6/09/2026 3:17:41 PM

CVE Modified by Microsoft Corporation 6/05/2026 2:17:15 PM

CVE Modified by Microsoft Corporation 6/01/2026 3:16:32 PM

New CVE Received from Microsoft Corporation 5/12/2026 2:17:13 PM

Quick Info