CVE-2026-21226

Azure Core shared client library for Python Remote Code Execution Vulnerability

CVSS 7.5 HIGHEPSS 0.8%CWE-502

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

13 Jan 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected products

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References