CVE-2026-21531
Azure SDK for Python Remote Code Execution Vulnerability
CVSS Score
9.8
EPSS Score
0.5%
EPSS Percentile
64th
Deserialization of untrusted data in Azure SDK allows an unauthorized attacker to execute code over a network.
| Vendor | microsoft |
| Product | azure ai language authoring |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Feb 10, 2026 |
| Last Updated | Apr 10, 2026 |
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CVSS v3 Breakdown
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 Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Azure AI Language Authoring
1.0.0 < 1.0.0b4