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
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Azure Local must be exposed to network traffic without proper certificate pinning or validation enabled. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 8.1 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A remote attacker without authentication could exploit this vulnerability to compromise the affected system. |
| Remediation | Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify and inventory all Azure Local deployments in your environment and assess network exposure. …
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External POC / Exploit Code
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