NVD

CVE-2026-50653 Detail

Description

Loop with unreachable exit condition ('infinite loop') in Azure Active Directory allows an unauthorized attacker to deny service over a network.

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: 7.5 HIGH

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

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-2026-50653	Microsoft Corporation	Patch Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-400	Uncontrolled Resource Consumption	Microsoft Corporation
CWE-835	Loop with Unreachable Exit Condition ('Infinite Loop')	Microsoft Corporation

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
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Change History

6 change records found show changes

Initial Analysis by NIST 7/24/2026 11:15:06 AM

Action	Type	New Value
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_2016:-:::::::* cpe:2.3:o:microsoft:windows_server_2012:-:::::::* cpe:2.3:o:microsoft:windows_server_2019:-:::::::* cpe:2.3:o:microsoft:windows_server_2022:-:::::::* cpe:2.3:o:microsoft:windows_10_1607:-::::::x64: 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_21h2:-::::::x86: cpe:2.3:o:microsoft:windows_10_22h2:-::::::arm64: cpe:2.3:o:microsoft:windows_10_1809:-::::::x86: cpe:2.3:o:microsoft:windows_10_22h2:-::::::x86: cpe:2.3:o:microsoft:windows_10_1607:-::::::x86: 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:-::::::x64: cpe:2.3:o:microsoft:windows_11_26h1:-::::::arm64: cpe:2.3:o:microsoft:windows_11_26h1:-::::::x64:
Added	CPE Configuration	AND OR cpe:2.3:a:microsoft:.net_framework:4.6.2::::::: 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:4.7.1::::::: 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:4.7.2::::::: 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_server_2019:-:::::::* cpe:2.3:o:microsoft:windows_10_1607:-::::::x64: cpe:2.3:o:microsoft:windows_10_1809:-::::::x64: cpe:2.3:o:microsoft:windows_10_1809:-::::::x86: cpe:2.3:o:microsoft:windows_10_1607:-::::::x86:
Added	CPE Configuration	AND OR cpe:2.3:a:microsoft:.net_framework:4.7::::::: 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:4.8.1::::::: OR cpe:2.3:o:microsoft:windows_server_2022:-:::::::* 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_21h2:-::::::x86: cpe:2.3:o:microsoft:windows_10_22h2:-::::::arm64: cpe:2.3:o:microsoft:windows_10_22h2:-::::::x86: 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:-::::::x64: cpe:2.3:o:microsoft:windows_11_26h1:-::::::arm64: cpe:2.3:o:microsoft:windows_11_26h1:-::::::x64:
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_server_2019:-:::::::* cpe:2.3:o:microsoft:windows_server_2022:-:::::::* cpe:2.3:o:microsoft:windows_10_1607:-::::::x64: 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_21h2:-::::::x86: cpe:2.3:o:microsoft:windows_10_22h2:-::::::arm64: cpe:2.3:o:microsoft:windows_10_1809:-::::::x86: cpe:2.3:o:microsoft:windows_10_22h2:-::::::x86: cpe:2.3:o:microsoft:windows_10_1607:-::::::x86:
Added	CPE Configuration	OR cpe:2.3:a:microsoft:azure_active_directory:-:::::::
Added	Reference Type	Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50653 Types: Patch, Vendor Advisory

CVE Modified by Microsoft Corporation 7/22/2026 12:18:07 PM

Action

Type

Old Value

New Value

Changed

Affected

Record truncated, showing 2048 of 3597 characters.
View Entire Change Record

[{"vendor":"Microsoft","product":"Azure Active Directory","versions":[{"version":"2021","lessThan":"8.19.2","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5","platforms":["Windows Server 2012","Windows Server 2012 (Server Core installation)","Windows Server 2012 R2","Windows Server 2012 R2 (Server Core installation)"],"versions":[{"version":"3.5.0","lessThan":"2.0.50727.8983 & 3.0.30729.8978","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.7.2","platforms":["Windows 10 Version 1607 for 32-bit Systems","Windows 10 Version 1607 for x64-based Systems","Windows 10 Version 1809 for 32-bit Systems","Windows 10 Version 1809 for x64-based Systems","Windows Server 2016","Windows Server 2016 (Server Core installation)","Windows Server 2019","Windows Server 2019 (Server Core installation)"],"versions":[{"version":"4.7.0","lessThan":"2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0","versionType":"custom","status":"affected"}]},{"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 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 2019 (Server Core installation)","Windows Server 2022","Windows Server 2022 (Server Core installation)"],"versions":[{"version":"4.8.0","lessThan":"2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0","versionType":"custom","status":"affected"}]},{"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 fo

Record truncated, showing 2048 of 3877 characters.
View Entire Change Record

[{"vendor":"Microsoft","product":"Azure Active Directory","versions":[{"version":"2021","lessThan":"8.19.2","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5","platforms":["Windows 11 Version 26H1 for ARM64-based Systems","Windows 11 version 26H1 for x64-based Systems","Windows Server 2012","Windows Server 2012 (Server Core installation)","Windows Server 2012 R2","Windows Server 2012 R2 (Server Core installation)"],"versions":[{"version":"3.5.0","lessThan":"2.0.50727.9182 & 3.0.30729.9168","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.7.2","platforms":["Windows 10 Version 1607 for 32-bit Systems","Windows 10 Version 1607 for x64-based Systems","Windows 10 Version 1809 for 32-bit Systems","Windows 10 Version 1809 for x64-based Systems","Windows Server 2016","Windows Server 2016 (Server Core installation)","Windows Server 2019","Windows Server 2019 (Server Core installation)"],"versions":[{"version":"4.7.0","lessThan":"2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0","versionType":"custom","status":"affected"}]},{"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 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 2019 (Server Core installation)","Windows Server 2022","Windows Server 2022 (Server Core installation)"],"versions":[{"version":"4.8.0","lessThan":"2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0","versionType":"custom","status":"affected"}]},{"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 fo

CVE Modified by Microsoft Corporation 7/20/2026 8:17:22 PM

Action

Type

Old Value

New Value

Changed

Affected

Record truncated, showing 2048 of 3668 characters.
View Entire Change Record

[{"vendor":"Microsoft","product":"Azure Active Directory","versions":[{"version":"2021","lessThan":"8.19.2","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5","platforms":["Windows Server 2012","Windows Server 2012 (Server Core installation)","Windows Server 2012 R2","Windows Server 2012 R2 (Server Core installation)"],"versions":[{"version":"3.5.0","lessThan":"2.0.50727.8983 & 3.0.30729.8978","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.7.2","platforms":["Windows 10 Version 1607 for 32-bit Systems","Windows 10 Version 1607 for x64-based Systems","Windows 10 Version 1809 for 32-bit Systems","Windows 10 Version 1809 for x64-based Systems","Windows Server 2016","Windows Server 2016 (Server Core installation)","Windows Server 2019","Windows Server 2019 (Server Core installation)"],"versions":[{"version":"4.7.0","lessThan":"2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0","versionType":"custom","status":"affected"}]},{"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 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 2019 (Server Core installation)","Windows Server 2022","Windows Server 2022 (Server Core installation)"],"versions":[{"version":"4.8.0","lessThan":"2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0","versionType":"custom","status":"affected"}]},{"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 fo

Record truncated, showing 2048 of 3597 characters.
View Entire Change Record

[{"vendor":"Microsoft","product":"Azure Active Directory","versions":[{"version":"2021","lessThan":"8.19.2","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5","platforms":["Windows Server 2012","Windows Server 2012 (Server Core installation)","Windows Server 2012 R2","Windows Server 2012 R2 (Server Core installation)"],"versions":[{"version":"3.5.0","lessThan":"2.0.50727.8983 & 3.0.30729.8978","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.7.2","platforms":["Windows 10 Version 1607 for 32-bit Systems","Windows 10 Version 1607 for x64-based Systems","Windows 10 Version 1809 for 32-bit Systems","Windows 10 Version 1809 for x64-based Systems","Windows Server 2016","Windows Server 2016 (Server Core installation)","Windows Server 2019","Windows Server 2019 (Server Core installation)"],"versions":[{"version":"4.7.0","lessThan":"2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0","versionType":"custom","status":"affected"}]},{"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 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 2019 (Server Core installation)","Windows Server 2022","Windows Server 2022 (Server Core installation)"],"versions":[{"version":"4.8.0","lessThan":"2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0","versionType":"custom","status":"affected"}]},{"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 fo

CVE Modified by Microsoft Corporation 7/16/2026 6:17:28 PM

Action

Type

Old Value

New Value

Changed

Affected

[{"vendor":"Microsoft","product":"Azure Active Directory","versions":[{"version":"2021","lessThan":"8.19.2","versionType":"custom","status":"affected"}]}]

Record truncated, showing 2048 of 3668 characters.
View Entire Change Record

[{"vendor":"Microsoft","product":"Azure Active Directory","versions":[{"version":"2021","lessThan":"8.19.2","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5","platforms":["Windows Server 2012","Windows Server 2012 (Server Core installation)","Windows Server 2012 R2","Windows Server 2012 R2 (Server Core installation)"],"versions":[{"version":"3.5.0","lessThan":"2.0.50727.8983 & 3.0.30729.8978","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft .NET Framework 3.5 AND 4.7.2","platforms":["Windows 10 Version 1607 for 32-bit Systems","Windows 10 Version 1607 for x64-based Systems","Windows 10 Version 1809 for 32-bit Systems","Windows 10 Version 1809 for x64-based Systems","Windows Server 2016","Windows Server 2016 (Server Core installation)","Windows Server 2019","Windows Server 2019 (Server Core installation)"],"versions":[{"version":"4.7.0","lessThan":"2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0","versionType":"custom","status":"affected"}]},{"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 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 2019 (Server Core installation)","Windows Server 2022","Windows Server 2022 (Server Core installation)"],"versions":[{"version":"4.8.0","lessThan":"2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0","versionType":"custom","status":"affected"}]},{"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 fo

New CVE Received from Microsoft Corporation 7/14/2026 1:17:01 PM

Action	Type	New Value
Added	Description	Loop with unreachable exit condition ('infinite loop') in Azure Active Directory allows an unauthorized attacker to deny service over a network.
Added	CVSS V3.1	AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added	CWE	CWE-400
Added	CWE	CWE-835
Added	Reference	https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50653
Added	Affected	[{"vendor":"Microsoft","product":"Azure Active Directory","versions":[{"version":"2021","lessThan":"8.19.2","versionType":"custom","status":"affected"}]}]

Quick Info

CVE Dictionary Entry:
CVE-2026-50653
NVD Published Date:
07/14/2026
NVD Last Modified:
07/24/2026
Source:
Microsoft Corporation

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2026-50653 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 7/24/2026 11:15:06 AM

CVE Modified by Microsoft Corporation 7/22/2026 12:18:07 PM

CVE Modified by Microsoft Corporation 7/20/2026 8:17:22 PM

CVE Modified by Microsoft Corporation 7/16/2026 6:17:28 PM

CVE Modified by CISA-ADP 7/14/2026 5:17:04 PM

New CVE Received from Microsoft Corporation 7/14/2026 1:17:01 PM

Quick Info