CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-21226

Deserialization of untrusted data in Azure Core shared client library for Python allows an authorized attacker to execute code over a network.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.015

EPSS Ranking 80.6%

CVSS Severity

CVSS v3 Score 7.5

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21226

Products affected by CVE-2026-21226

Microsoft » Azure Core Shared Client Library » Version: 1.1.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.1.0
Microsoft » Azure Core Shared Client Library » Version: 1.1.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.1.1
Microsoft » Azure Core Shared Client Library » Version: 1.10.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.10.0
Microsoft » Azure Core Shared Client Library » Version: 1.11.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.11.0
Microsoft » Azure Core Shared Client Library » Version: 1.12.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.12.0
Microsoft » Azure Core Shared Client Library » Version: 1.13.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.13.0
Microsoft » Azure Core Shared Client Library » Version: 1.14.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.14.0
Microsoft » Azure Core Shared Client Library » Version: 1.15.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.15.0
Microsoft » Azure Core Shared Client Library » Version: 1.16.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.16.0
Microsoft » Azure Core Shared Client Library » Version: 1.17.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.17.0
Microsoft » Azure Core Shared Client Library » Version: 1.18.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.18.0
Microsoft » Azure Core Shared Client Library » Version: 1.19.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.19.0
Microsoft » Azure Core Shared Client Library » Version: 1.19.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.19.1
Microsoft » Azure Core Shared Client Library » Version: 1.2.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.2.0
Microsoft » Azure Core Shared Client Library » Version: 1.2.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.2.1
Microsoft » Azure Core Shared Client Library » Version: 1.2.2

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.2.2
Microsoft » Azure Core Shared Client Library » Version: 1.20.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.20.0
Microsoft » Azure Core Shared Client Library » Version: 1.20.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.20.1
Microsoft » Azure Core Shared Client Library » Version: 1.21.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.21.0
Microsoft » Azure Core Shared Client Library » Version: 1.21.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.21.1
Microsoft » Azure Core Shared Client Library » Version: 1.22.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.22.0
Microsoft » Azure Core Shared Client Library » Version: 1.22.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.22.1
Microsoft » Azure Core Shared Client Library » Version: 1.23.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.23.0
Microsoft » Azure Core Shared Client Library » Version: 1.23.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.23.1
Microsoft » Azure Core Shared Client Library » Version: 1.24.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.24.0
Microsoft » Azure Core Shared Client Library » Version: 1.24.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.24.1
Microsoft » Azure Core Shared Client Library » Version: 1.24.2

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.24.2
Microsoft » Azure Core Shared Client Library » Version: 1.25.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.25.0
Microsoft » Azure Core Shared Client Library » Version: 1.25.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.25.1
Microsoft » Azure Core Shared Client Library » Version: 1.26.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.26.0
Microsoft » Azure Core Shared Client Library » Version: 1.26.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.26.1
Microsoft » Azure Core Shared Client Library » Version: 1.26.2

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.26.2
Microsoft » Azure Core Shared Client Library » Version: 1.26.3

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.26.3
Microsoft » Azure Core Shared Client Library » Version: 1.26.4

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.26.4
Microsoft » Azure Core Shared Client Library » Version: 1.27.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.27.0
Microsoft » Azure Core Shared Client Library » Version: 1.27.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.27.1
Microsoft » Azure Core Shared Client Library » Version: 1.28.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.28.0
Microsoft » Azure Core Shared Client Library » Version: 1.29.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.29.0
Microsoft » Azure Core Shared Client Library » Version: 1.29.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.29.1
Microsoft » Azure Core Shared Client Library » Version: 1.29.2

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.29.2
Microsoft » Azure Core Shared Client Library » Version: 1.29.3

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.29.3
Microsoft » Azure Core Shared Client Library » Version: 1.29.4

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.29.4
Microsoft » Azure Core Shared Client Library » Version: 1.29.5

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.29.5
Microsoft » Azure Core Shared Client Library » Version: 1.29.6

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.29.6
Microsoft » Azure Core Shared Client Library » Version: 1.29.7

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.29.7
Microsoft » Azure Core Shared Client Library » Version: 1.3.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.3.0
Microsoft » Azure Core Shared Client Library » Version: 1.30.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.30.0
Microsoft » Azure Core Shared Client Library » Version: 1.30.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.30.1
Microsoft » Azure Core Shared Client Library » Version: 1.30.2

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.30.2
Microsoft » Azure Core Shared Client Library » Version: 1.31.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.31.0
Microsoft » Azure Core Shared Client Library » Version: 1.32.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.32.0
Microsoft » Azure Core Shared Client Library » Version: 1.33.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.33.0
Microsoft » Azure Core Shared Client Library » Version: 1.34.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.34.0
Microsoft » Azure Core Shared Client Library » Version: 1.35.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.35.0
Microsoft » Azure Core Shared Client Library » Version: 1.35.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.35.1
Microsoft » Azure Core Shared Client Library » Version: 1.36.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.36.0
Microsoft » Azure Core Shared Client Library » Version: 1.37.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.37.0
Microsoft » Azure Core Shared Client Library » Version: 1.4.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.4.0
Microsoft » Azure Core Shared Client Library » Version: 1.5.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.5.0
Microsoft » Azure Core Shared Client Library » Version: 1.6.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.6.0
Microsoft » Azure Core Shared Client Library » Version: 1.7.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.7.0
Microsoft » Azure Core Shared Client Library » Version: 1.8.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.8.0
Microsoft » Azure Core Shared Client Library » Version: 1.8.1

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.8.1
Microsoft » Azure Core Shared Client Library » Version: 1.8.2

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.8.2
Microsoft » Azure Core Shared Client Library » Version: 1.9.0

cpe:2.3:a:microsoft:azure_core_shared_client_library:1.9.0

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-21226

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