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CVE-2026-66309NVD

Vulnerability Summary

Improper access control in Azure SQL Database allows an authorized attacker to elevate privileges over a network.

Severity Level

CRITICAL(9.1)

Published Date

Aug 20, 2026

Last Modified

Aug 20, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

Data Pending

Root Weakness (CWE)

CWE-284: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v3.1 Base Metrics

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

External References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66309

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Critical Alert 2 Active Exploits Detected Today

CVE-2026-66309NVD

Vulnerability Summary

External References