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Microsoft SQL Server EUVDEUVD-2026-73393

| CVE-2026-68777 MEDIUM
Out-of-bounds Read (CWE-125)
2026-09-08 secure@microsoft.com GHSA-jrf2-gg6v-r8q9
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 with low-privilege database account; out-of-bounds read yields confidentiality loss only, with no integrity or availability impact.

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

5
Metadata Corrected
Sep 09, 2026 - 01:40 vuln.today
tag: Microsoft added
Metadata Corrected
Sep 09, 2026 - 01:40 vuln.today
tag: Buffer Overflow removed
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

Out-of-bounds read in SQL Server allows an authorized attacker to disclose information over a network.

AnalysisAI

Out-of-bounds memory read in Microsoft SQL Server 2017 through 2025 allows network-authenticated, low-privilege database users to disclose sensitive server-side memory contents. The flaw (CWE-125) is reachable over the network with only a valid database account, requiring no user interaction, and affects all currently supported SQL Server release tracks - both Cumulative Update and General Distribution Release channels. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation Exploitation requires a valid SQL Server database login with at least low privileges (PR:L per CVSS vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 6.5 (Medium) score reflects a meaningful but bounded risk profile: network reachability and low attack complexity make triggering the bug straightforward once authenticated, but PR:L is a genuine gatekeeping factor - unauthenticated external attackers cannot exploit this without first obtaining a valid database credential. … 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 Vendor-released patches are available for all affected branches. … 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-2026-73393 vulnerability details – vuln.today

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