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CVE-2026-88085

Microsoft SQL Server Elevation of Privilege Vulnerability

Microsoft Microsoft SQL Server 2017 (GDR)Databases
Open in ThreatlineRecord JSON
CVSS
6.4Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.19%Chance of exploitation activity in the next 30 days, higher than 8% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in14.0.2140.2Also 14.0.3560.2, 15.0.2200.2 and 5 moreCVE List
Published13 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

  • 14.0.2140.2Microsoft SQL Server 2017 (GDR)CVE List
  • 14.0.3560.2Microsoft SQL Server 2017 for x64-based Systems (CU31)CVE List
  • 15.0.2200.2Microsoft SQL Server 2019 (GDR)CVE List
  • 15.0.4500.2Microsoft SQL Server 2019 for x64-based Systems (CU32)CVE List
  • 16.0.1210.3Microsoft SQL Server 2022 (GDR)CVE List
  • 16.0.4305.5Microsoft SQL Server 2022 for x64-based Systems (CU27)CVE List
Show all 8 fixed versions
  • 17.0.5015.4Microsoft SQL Server 2025 for x64-based Systems (CU9)CVE List
  • 17.0.1145.4Microsoft SQL Server 2025 for x64-based Systems (GDR)CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Vendor and government advisories 1

Vendors that say their products are affected, and agencies that issued alerts. Check each for the fixed release of the product you run.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

Description

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

Text from CVE List

Affected versions 9

  • Microsoft SQL Server 2017 (GDR)affected: 14.0.0 before 14.0.2140.2CVE List
  • Microsoft SQL Server 2017 for x64-based Systems (CU31)affected: 14.0.3006.16 before 14.0.3560.2CVE List
  • Microsoft SQL Server 2019 (GDR)affected: 15.0.0 before 15.0.2200.2CVE List
  • Microsoft SQL Server 2019 for x64-based Systems (CU32)affected: 15.0.4003.23 before 15.0.4500.2CVE List
  • Microsoft SQL Server 2022 (GDR)affected: 16.0.0 before 16.0.1210.3CVE List
  • Microsoft SQL Server 2022 for x64-based Systems (CU27)affected: 16.0.4003.1 before 16.0.4305.5CVE List
  • Microsoft SQL Server 2025 (CU8)affected: -CVE List
  • Microsoft SQL Server 2025 for x64-based Systems (CU9)affected: 17.0.4006.2 before 17.0.5015.4CVE List
  • Microsoft SQL Server 2025 for x64-based Systems (GDR)affected: 17.0.1050.2 before 17.0.1145.4CVE List

References 1