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Azure CVE-2026-21524

HIGH
Information Exposure (CWE-200)
2026-01-22 secure@microsoft.com
7.4
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.4 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 22, 2026 - 23:15 nvd
HIGH 7.4

DescriptionCVE.org

Exposure of sensitive information to an unauthorized actor in Azure Data Explorer allows an unauthorized attacker to disclose information over a network.

AnalysisAI

Azure Data Explorer exposes sensitive information to unauthenticated remote attackers through a network-accessible vulnerability requiring only user interaction. An attacker can retrieve confidential data without authorization, potentially compromising customer information stored in affected Azure deployments. …

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  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Craft malicious link or request
Exploit
Trick user into clicking via social engineering
Execution
Azure Data Explorer processes request
Impact
Sensitive data exposed to attacker

Vulnerability AssessmentAI

Exploitation User interaction required. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 7.4 (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: Inventory all Azure Data Explorer instances and identify those containing sensitive or regulated data. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-21524 vulnerability details – vuln.today

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