EUVD-2026-73385
GHSA-x8c3-f889-qqmj
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Authenticated low-privilege network session sufficient; buffer over-read produces no write or availability impact, only memory disclosure.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network.
AnalysisAI
Buffer over-read (CWE-126) in Microsoft SQL Server exposes adjacent memory contents to authenticated low-privileged network attackers across SQL Server versions 2017 through 2025. The vulnerability spans both Cumulative Update (CU) and General Distribution Release (GDR) servicing branches, making patch management across heterogeneous SQL Server estates non-trivial. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated SQL Server database login with at least low privileges (PR:L per CVSS). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 6.5 (Medium) score reflects a pure confidentiality impact (C:H/I:N/A:N) with no write or denial-of-service primitive. … 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 Microsoft security update appropriate to your installed SQL Server version and servicing branch: SQL Server 2017 CU update to 14.0.3550.4 or later; SQL Server 2017 GDR update to 14.0.2130.4 or later; SQL Server 2019 CU update to 15.0.4490.9 or later; SQL Server 2019 GDR update to 15.0.2190.7 or later; SQL Server 2022 CU update to 16.0.4275.2 or later; SQL Server 2022 GDR update to 16.0.1200.5 or later; SQL Server 2025 CU update to 17.0.4085.5 or later; SQL Server 2025 GDR update to 17.0.1135.8 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-126 – Buffer Over-read
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External POC / Exploit Code
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