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CVE-2026-21531
CRITICAL9.8
Description
Deserialization of untrusted data in Azure SDK allows an unauthorized attacker to execute code over a network.
CVE Details
CVSS v3.1 Score9.8
SeverityCRITICAL
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
Published2/10/2026
Last Modified2/12/2026
Sourcenvd
Honeypot Sightings0
Affected Products
microsoft:azure_conversation_authoring_client_library
Weaknesses (CWE)
CWE-502
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21531(secure@microsoft.com)
IOC Correlations
No correlations recorded
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