Read the docs
TI-2026-47785 Aliases CVE-2026-67641GHSA-m563-v4rr-6f2j

Microsoft SQL Server Denial of Service Vulnerability

Priority LOW 31CWE-190Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
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 and Microsoft. Impact type from Microsoft.

Summary

Integer overflow or wraparound 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 0.01138 66th percentileScored 2026-11-07
Fix Fixed Microsoft: 4 updates

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 2022 (CU 26)16.0.0.0 to before 16.0.4275.216.0.4275.2Patch availableCNA
MicrosoftMicrosoft SQL Server 2022 (GDR)16.0.0 to before 16.0.1200.516.0.1200.5Patch availableCNA
MicrosoftMicrosoft SQL Server 2025 (CU8)17.0.0.0 to before 17.0.4085.517.0.4085.5Patch availableCNA
MicrosoftMicrosoft SQL Server 2025 for x64-based Systems (GDR)17.0.1050.2 to before 17.0.1135.817.0.1135.8Patch availableCNA
  • Microsoft SQL Server 2022 (CU 26) VendorMicrosoft Affected 16.0.0.0 to before 16.0.4275.2 Fixed in 16.0.4275.2 Patch available CNA
  • Microsoft SQL Server 2022 (GDR) VendorMicrosoft Affected 16.0.0 to before 16.0.1200.5 Fixed in 16.0.1200.5 Patch available CNA
  • Microsoft SQL Server 2025 (CU8) VendorMicrosoft Affected 17.0.0.0 to before 17.0.4085.5 Fixed in 17.0.4085.5 Patch available CNA
  • Microsoft SQL Server 2025 for x64-based Systems (GDR) VendorMicrosoft Affected 17.0.1050.2 to before 17.0.1135.8 Fixed in 17.0.1135.8 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*before 16.0.1200.5; 16.0.4003.1 to before 16.0.4275.2VulnerableMicrosoft
cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*before 17.0.1135.8; 17.0.4006.2 to before 17.0.4085.5VulnerableMicrosoft
  • cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:* Versions before 16.0.1200.5; 16.0.4003.1 to before 16.0.4275.2 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:* Versions before 17.0.1135.8; 17.0.4006.2 to before 17.0.4085.5 Vulnerable ·Microsoft

Remediation

Microsoft 4 updates

  • KB5122771
    Security Update
    • Microsoft SQL Server 2022 for x64-based Systems (GDR) 16.0.1200.5
  • KB5122770
    Security Update
    • Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1135.8
  • KB5122769
    Security Update
    • Microsoft SQL Server 2025 for x64-based Systems (CU8) 17.0.4085.5
Show 1 more Microsoft updates
  • KB5122768
    Security Update
    • Microsoft SQL Server 2022 for x64-based Systems (CU 26) 16.0.4275.2

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Denial of Service
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Unlikely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-67641
  2. 2026-10-03 Alias added: GHSA-m563-v4rr-6f2j

References

Patch 1

  • TI-2024-19132 Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2025-31689 Microsoft SQL Server Information Disclosure Vulnerability CVSS 3.1HIGH 7.5
  • TI-2026-39042 Microsoft SQL Server Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-39041 Microsoft SQL Server Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2024-25283 Microsoft SQL Server Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2024-24853 Microsoft SQL Server Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.8
See all 180 →

Sources

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