Azure
CVE-2026-21228
HIGH
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Improper certificate validation in Azure Local allows an unauthorized attacker to execute code over a network.
AnalysisAI
Remote code execution in Azure Local stems from improper certificate validation, enabling unauthenticated attackers to execute arbitrary code over the network without user interaction. This HIGH severity vulnerability (CVSS 8.1) affects Azure and Azure Local deployments, with no patch currently available. Organizations using these products face immediate risk of compromise through network-based attacks exploiting this validation bypass.
Technical ContextAI
Classified as CWE-295 (Improper Certificate Validation). Affects Azure Local. Improper certificate validation in Azure Local allows an unauthorized attacker to execute code over a network.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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Same weakness CWE-295 – Improper Certificate Validation
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External POC / Exploit Code
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