EUVD-2026-73823
GHSA-g97c-mh47-f65v
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Network-reachable with low-privilege credential; out-of-bounds read yields confidentiality impact only, no integrity or availability loss.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in SQL Server allows an authorized attacker to disclose information over a network.
AnalysisAI
Out-of-bounds read in Microsoft SQL Server 2017 through 2025 exposes server memory contents to authenticated low-privilege network attackers, enabling information disclosure without integrity or availability impact. The flaw (CWE-125) requires only a valid low-privilege database account and network access, making it accessible to any SQL login holder - including application service accounts - against unpatched instances. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid low-privilege SQL Server credential - either a SQL login or a Windows authentication account with at minimum CONNECT permission to a database. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 6.5 (Medium) with vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N reflects a realistic, moderate-to-elevated risk for environments with many SQL logins or broad authentication. … 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 the vendor-released patches via the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67645. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Information Disclosure
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External POC / Exploit Code
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