EUVD-2026-73189
GHSA-74rx-r3vg-p4wg
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Description asserts code execution; heap overflow RCE requires AC:H for reliable exploitation; PR:H maintained per authorized-attacker requirement; C:H/I:H if code path is achieved.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
AnalysisAI
Heap-based buffer overflow (CWE-122) in Microsoft SQL Server allows a network-connected attacker with high database privileges to corrupt heap memory, causing at minimum a denial-of-service crash of the SQL Server process and potentially enabling code execution. Affects SQL Server versions 2017 through 2025 across both GDR and Cumulative Update servicing tracks. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid, high-privilege SQL Server account - described by Microsoft as an 'authorized attacker', consistent with the CVSS:3.1 PR:H metric. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS vector (AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H, score 4.9) presents a notable tension with the advisory description. … 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 for the applicable servicing track: SQL Server 2017 GDR → 14.0.2130.4; SQL Server 2017 CU 31 → 14.0.3550.4; SQL Server 2019 GDR → 15.0.2190.7; SQL Server 2019 CU 32 → 15.0.4490.9; SQL Server 2022 GDR → 16.0.1200.5; SQL Server 2022 CU 26 → 16.0.4275.2; SQL Server 2025 CU8 → 17.0.4085.5; SQL Server 2025 GDR (x64) → 17.0.1135.8. … Detailed patch versions, workarounds, and compensating controls in full report. |
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View allSame technique Buffer Overflow
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External POC / Exploit Code
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