CVE-2026-88082: Microsoft SQL Server Elevation of Privilege Vulnerability
Published Oct 13, 2026
·Updated
Heap-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges locally.
Other sources
Microsoft SQL Server Elevation of Privilege Vulnerability
— Microsoft
Affected Software
21 affected componentsFixes available
Microsoft SQL Server 2022<16.0.1210.3
16.0.1210.3
Microsoft SQL Server 2019<15.0.2200.2
15.0.2200.2
Microsoft SQL Server 2025<17.0.1145.4
17.0.1145.4
Microsoft SQL Server 2025
Microsoft SQL Server 2022<16.0.4305.5
16.0.4305.5
Microsoft SQL Server 2019<15.0.4500.2
15.0.4500.2
Microsoft SQL Server 2025<17.0.5015.4
17.0.5015.4
Microsoft SQL Server 2025>=17.0.4006.2<=17.0.5005.3
17.0.5015.4
Microsoft SQL Server 2025>=17.0.1000.7<=17.0.1135.8
17.0.1145.4
Microsoft SQL Server 2022>=16.0.4003.1<=16.0.4295.3
16.0.4305.5
Microsoft SQL Server 2022>=16.0.1000.6<=16.0.1200.5
16.0.1210.3
Microsoft SQL Server 2019>=15.0.4003.23<=15.0.4490.9
15.0.4500.2
Microsoft SQL Server 2019>=15.0.2000.5<=15.0.2190.7
15.0.2200.2
Microsoft SQL Server 2017>=14.0.3006.16<=14.0.3550.4
14.0.3560.2
Microsoft SQL Server 2017>=14.0.1000.169<=14.0.2130.4
14.0.2140.2
Microsoft SQL Server 2019>=15.0.2000.5<15.0.2200.2
Microsoft SQL Server 2019>=15.0.4003.23<15.0.4500.2
Microsoft SQL Server 2022>=16.0.1000.6<16.0.1210.3
Microsoft SQL Server 2022>=16.0.4003.1<16.0.4305.5
Microsoft SQL Server 2025>=17.0.1000.7<17.0.1145.4
Microsoft SQL Server 2025>=17.0.4006.2<17.0.5015.4
Remediation
Event History
Oct 13, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·08:37 PM
Data Sourced
via MITRE·08:37 PM
DescriptionSeverity
Data Sourced
via NVD·09:19 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
Who is realistically exposed to this vulnerability?
Systems running the listed Microsoft SQL Server 2019, SQL Server 2022, or SQL Server 2025 products are in scope. Exploitation is local, so exposure is primarily to users or processes that can authenticate locally and hold low-level privileges.
2
What level of access does an attacker need?
An attacker needs local access and low privileges. No user interaction is required, but the attack complexity is rated high.
3
What could successful exploitation allow?
Successful exploitation could allow elevation of privileges. The supplied metrics indicate high potential impact to confidentiality, integrity, and availability.