CVE-2026-67641

Microsoft SQL Server Denial of Service Vulnerability

Published Sep 8, 2026 CVSS 3.1 · 6.5 Medium EPSS 1.1% KEV · Not listed
Description
Integer overflow or wraparound in SQL Server allows an authorized attacker to deny service over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Microsoft microsoft Sql Server 2022 (gdr)
Microsoft microsoft Sql Server 2025 (cu 2)
Microsoft microsoft Sql Server 2025 For X64-based Systems (gdr)
Vendors & Products Microsoft microsoft Sql Server 2022 (gdr)
Microsoft microsoft Sql Server 2025 (cu 2)
Microsoft microsoft Sql Server 2025 For X64-based Systems (gdr)
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Integer overflow or wraparound in SQL Server allows an authorized attacker to deny service over a network.
Title Microsoft SQL Server Denial of Service Vulnerability
First Time appeared Microsoft
Microsoft sql Server 2022
Microsoft sql Server 2025
Weaknesses CWE-190
CPEs cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*
Vendors & Products Microsoft
Microsoft sql Server 2022
Microsoft sql Server 2025
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 9:33 PM
Reserved
Jul 29, 2026, 10:49 PM
Status
Analyzed
Published
Sep 8, 2026, 6:18 PM
Modified
Sep 15, 2026, 7:33 PM