Description
Deserialization of untrusted data in Azure SDK allows an unauthorized attacker to execute code over a network.
Published: 2026-02-10
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Patch Now
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-436v-jg82-p533 Azure AI Language Authoring Elevation of Privilege Vulnerability can Lead to RCE
History

Thu, 26 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Thu, 12 Feb 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft azure Conversation Authoring Client Library
CPEs 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:*:*
Vendors & Products Microsoft azure Conversation Authoring Client Library

Tue, 10 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Description Deserialization of untrusted data in Azure SDK allows an unauthorized attacker to execute code over a network.
Title Azure SDK for Python Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft azure Ai Language Authoring
Weaknesses CWE-502
CPEs cpe:2.3:a:microsoft:azure_ai_language_authoring:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft azure Ai Language Authoring
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Azure Ai Language Authoring Azure Conversation Authoring Client Library
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-05-11T21:25:32.778Z

Reserved: 2025-12-30T18:10:54.847Z

Link: CVE-2026-21531

cve-icon Vulnrichment

Updated: 2026-02-25T15:43:12.708Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-10T18:16:35.580

Modified: 2026-02-12T15:49:25.373

Link: CVE-2026-21531

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-15T17:45:10Z

Weaknesses