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Microsoft SQL Server EUVDEUVD-2026-73390

| CVE-2026-67648 MEDIUM
Use of Uninitialized Resource (CWE-908)
2026-09-08 secure@microsoft.com GHSA-9cgp-6vfc-mw5p
6.5
CVSS 3.1 · Vendor: microsoft
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Severity by source

Vendor (microsoft) PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
ENISA EUVD
HIGH
qualitative
vuln.today AI
6.5 MEDIUM

Network-reachable by any authenticated low-privilege SQL Server user; uninitialized memory read yields confidentiality impact only, with no integrity or availability consequence.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (microsoft).

CVSS VectorVendor: microsoft

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Sep 09, 2026 - 01:37 vuln.today
Patch available
Sep 08, 2026 - 18:35 EUVD
CVE Published
Sep 08, 2026 - 18:18 cve.org
MEDIUM 6.5

DescriptionCVE.org

Use of uninitialized resource in SQL Server allows an authorized attacker to disclose information over a network.

AnalysisAI

Uninitialized memory disclosure in Microsoft SQL Server 2017 through 2025 allows a low-privileged authenticated attacker to read sensitive server memory contents over a network connection. The CWE-908 flaw affects all major SQL Server release branches - 2017, 2019, 2022, and 2025 - across both GDR and Cumulative Update servicing tracks. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid SQL Server login with at minimum low-privilege access (PR:L per CVSS vector) - unauthenticated external attackers cannot exploit this vulnerability. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 6.5 score (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N) correctly characterizes a bounded but meaningful risk: network-exploitable with no complexity and high confidentiality impact, but gated by the PR:L requirement - a valid low-privilege SQL Server account. … 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 Apply Microsoft's released patches immediately. … Detailed patch versions, workarounds, and compensating controls in full report.

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

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EUVD-2026-73390 vulnerability details – vuln.today

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