Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.01174.

Exploitation none

Automatable yes

Technical Impact partial

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 Azure Active Directory affected
Version Status Constraints
2021 affected < 5.7.1
Microsoft Microsoft .NET Framework 3.5 affected
Version Status Constraints
3.5.0 affected < 2.0.50727.9182 & 3.0.30729.9168
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 affected
Version Status Constraints
4.7.0 affected < 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0
Microsoft Microsoft .NET Framework 3.5 AND 4.8 affected
Version Status Constraints
4.8.0 affected < 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 affected
Version Status Constraints
4.8.1 affected < 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 affected
Version Status Constraints
4.7.0 affected < 4.7.4143.0
Microsoft Microsoft .NET Framework 4.8 affected
Version Status Constraints
4.8.0 affected < 4.8.4803.0
Microsoft Microsoft .NET Framework 4.8.1 affected
Version Status Constraints
4.8.0.0 affected < 4.8.9340.0

No data.

No data.

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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-2026-50652 cve-icon
History

Wed, 22 Jul 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft .net Framework
CPEs cpe:2.3:a:microsoft:.net_framework:*:*:*:*:*:*:*:*
Vendors & Products Microsoft .net Framework

Thu, 16 Jul 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft .net
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
Vendors & Products Microsoft .net

Tue, 14 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 14 Jul 2026 17:15:00 +0000

Type Values Removed Values Added
Description Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.
Title Azure Active Directory Denial of Service Vulnerability
First Time appeared Microsoft
Microsoft azure Active Directory
Weaknesses CWE-502
CPEs cpe:2.3:a:microsoft:azure_active_directory:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft azure Active Directory
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-07-24T14:32:02.051Z

Reserved: 2026-06-05T14:33:50.830Z

Link: CVE-2026-50652

cve-icon Vulnrichment

Updated: 2026-07-14T17:49:30.327Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-23T01:45:19Z

Weaknesses