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TI-2026-73659 Aliases CVE-2026-88084

Resource allocation without limits in Microsoft SQL Server 2019

Priority LOW 25CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

Microsoft SQL Server 2019 (GDR) from 15.0.0 before 15.0.2200.2 and Microsoft SQL Server 2019 for x64-based Systems (CU32) from 15.0.4003.23 before 15.0.4500.2 are affected. Allocation of resources without limits or throttling (CWE-770) lets an authorized attacker over the network exhaust server resources and deny service. The attacker needs low privileges and no user interaction, and the impact is limited to availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

Allocation of resources without limits or throttling in SQL Server allows an authorized attacker to deny service over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00682 52nd percentileScored 2026-11-07
Fix Fixed Microsoft SQL Server 2019 (GDR) (Microsoft): 15.0.2200.2Microsoft SQL Server 2019 for x64-based Systems (CU32) (Microsoft): 15.0.4500.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft SQL Server 2019 (GDR)15.0.0 to before 15.0.2200.215.0.2200.2Patch availableCNA
MicrosoftMicrosoft SQL Server 2019 for x64-based Systems (CU32)15.0.4003.23 to before 15.0.4500.215.0.4500.2Patch availableCNA
  • Microsoft SQL Server 2019 (GDR) VendorMicrosoft Affected 15.0.0 to before 15.0.2200.2 Fixed in 15.0.2200.2 Patch available CNA
  • Microsoft SQL Server 2019 for x64-based Systems (CU32) VendorMicrosoft Affected 15.0.4003.23 to before 15.0.4500.2 Fixed in 15.0.4500.2 Patch available CNA

Remediation

Install SQL Server 2019 (GDR) 15.0.2200.2 or later and SQL Server 2019 for x64-based Systems (CU32) 15.0.4500.2 or later. The sources do not list advisory identifiers for these fixes.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

  • Fix · CNA Microsoft SQL Server 2019 (GDR) (Microsoft) Fixed in 15.0.2200.2
  • Fix · CNA Microsoft SQL Server 2019 for x64-based Systems (CU32) (Microsoft) Fixed in 15.0.4500.2

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-88084
  2. 2026-10-25 EPSS moved to the 50th–90th percentile
  3. 2026-10-30 Affected versions changed · CNA

References

Patch 1

  • TI-2026-42212 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-37256 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-26194 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-16982 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-36863 Windows Server Update Service (WSUS) Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-33671 Microsoft SharePoint Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
See all 18045 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences