CVE-2026-88082

Microsoft SQL Server Elevation of Privilege Vulnerability

State: Published
Severity: 7.0 High
Published: Oct 13, 2026
Updated: Oct 31, 2026
Reserved: Sep 9, 2026

Description

Heap-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges locally.

Scores

CVSS	Score	Vector	Source
3.1	7.0 High	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
Microsoft SQL Server 2019 (GDR)Microsoft	15.0.0 to before 15.0.2200.2Affected
Microsoft SQL Server 2019 for x64-based Systems (CU32)Microsoft	15.0.4003.23 to before 15.0.4500.2Affected
Microsoft SQL Server 2022 (GDR)Microsoft	16.0.0 to before 16.0.1210.3Affected
Microsoft SQL Server 2022 for x64-based Systems (CU27)Microsoft	16.0.4003.1 to before 16.0.4305.5Affected
Microsoft SQL Server 2025 for x64-based Systems (CU9)Microsoft	17.0.4006.2 to before 17.0.5015.4Affected
Microsoft SQL Server 2025 for x64-based Systems (GDR)Microsoft	17.0.1050.2 to before 17.0.1145.4Affected

References

Microsoft SQL Server Elevation of Privilege Vulnerabilityvendor-advisorypatch

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