CVE-2026-21531

Deserialization of untrusted data in Azure SDK allows an unauthorized attacker to execute code over a network.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21531	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:microsoft:azure_conversation_authoring_client_library:1.0.0:beta1::::python::*
	cpe:2.3:a:microsoft:azure_conversation_authoring_client_library:1.0.0:beta2::::python::*
	cpe:2.3:a:microsoft:azure_conversation_authoring_client_library:1.0.0:beta3::::python::*

History

No history.

Information

Published : 2026-02-10 18:16

Updated : 2026-06-17 10:18

NVD link : CVE-2026-21531

Mitre link : CVE-2026-21531

CVE.ORG link : CVE-2026-21531

JSON object : View

Products Affected

microsoft

azure_conversation_authoring_client_library

CWE

CWE-502

Deserialization of Untrusted Data

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