EUVD-2026-54323
GHSA-6gmq-p797-9x4m
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Improper authentication reachable over the network with no credentials or interaction and a cross-tenant scope change yields PR:N, AC:L, S:C, and full C/I/A impact.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Improper authentication in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
AnalysisAI
Elevation of privilege in Microsoft Azure SQL Database lets an unauthorized network attacker bypass authentication and gain higher privileges, with a maximum CVSS 10.0 and a scope change indicating the flaw extends impact beyond the initially vulnerable component. The CVSS vector (PR:N/UI:N) means no credentials or user interaction are required, making this a critical priority despite no public exploit being identified. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The CVSS vector is AV:N/AC:L/PR:N/UI:N, so no special conditions - remote unauthenticated exploitation over the network against Azure SQL Database with no user interaction and low attack complexity. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This rates the theoretical maximum: CVSS 10.0 with AV:N (network), AC:L (low complexity), PR:N (no privileges), UI:N (no user interaction), S:C (scope change), and full C:H/I:H/A:H impact - the strongest possible signal that exploitation is easy and consequences are total. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Because Azure SQL Database is a fully managed service, the fix is deployed by Microsoft to the cloud fleet and generally requires no customer action; no customer-installable patch version was provided, so the applicable status is 'Patch available per vendor advisory' - confirm remediation state at the MSRC guide https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56162. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Azure SQL Database instances and enable detailed audit logging to track authentication attempts and privilege changes. …
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External POC / Exploit Code
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