Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
2DescriptionCVE.org
Heap-based buffer overflow in SQL Server ODBC driver allows an unauthorized attacker to execute code over a network.
AnalysisAI
Remote code execution in the Microsoft ODBC Driver for SQL Server (shipped across Windows 10, Windows 11, and Windows Server 2012 through 2025) stems from a heap-based buffer overflow that lets an attacker run arbitrary code over the network. The supplied CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) scores it 9.8 and marks it unauthenticated, though as a database driver flaw the realistic trigger is a client connecting to a malicious or compromised SQL Server endpoint. There is no public exploit identified at time of analysis and no CISA KEV listing, so this is a high-severity but not yet actively-exploited issue.
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Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Heap Overflow
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-43972
GHSA-5c27-5r7x-7gmh