CVE-2026-21531
Deserialization of untrusted data in Azure SDK allows an unauthorized attacker to execute code over a network.
Published:Feb 10, 2026
Last Modified:Apr 15, 2026
EPS:Feb 10, 2026
EPSS Score:0.00459
CVSS Score:9.8
Affected Products
Vendor
Product
Action
Vendor
Microsoft
Product
Azure Ai Language Authoring
Microsoft
Azure Ai Language Authoring
Vendor
Microsoft
Product
Azure Conversation Authoring Client Library
Microsoft
Azure Conversation Authoring Client Library
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
