Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.

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Vendors Products
Microsoft Subscribe
Microsoft Sql Server 2017 For X64-based Systems \(cu31\) Subscribe
Microsoft Sql Server 2019 For X64-based Systems \(cu32\) Subscribe
Microsoft Sql Server 2022 For X64-based Systems \(cu27\) Subscribe
Microsoft Sql Server 2025 For X64-based Systems \(cu9\) Subscribe
Sql Server 2017 Subscribe
Sql Server 2019 Subscribe
Sql Server 2022 Subscribe
Sql Server 2025 Subscribe
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Fixes

Solution

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Workaround

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History

Tue, 13 Oct 2026 21:00:00 +0000

Type Values Removed Values Added
Description Use of externally-controlled format string 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 microsoft Sql Server 2017 For X64-based Systems \(cu31\)
Microsoft microsoft Sql Server 2019 For X64-based Systems \(cu32\)
Microsoft microsoft Sql Server 2022 For X64-based Systems \(cu27\)
Microsoft microsoft Sql Server 2025 For X64-based Systems \(cu9\)
Microsoft sql Server 2017
Microsoft sql Server 2019
Microsoft sql Server 2022
Microsoft sql Server 2025
Weaknesses CWE-134
CPEs cpe:2.3:a:microsoft:microsoft_sql_server_2017_for_x64-based_systems_\(cu31\):*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_sql_server_2019_for_x64-based_systems_\(cu32\):*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_sql_server_2022_for_x64-based_systems_\(cu27\):*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_sql_server_2025_for_x64-based_systems_\(cu9\):*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:sql_server_2017:*:-:*:*:*:*:x64:*
cpe:2.3:a:microsoft:sql_server_2019:*:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*
Vendors & Products Microsoft
Microsoft microsoft Sql Server 2017 For X64-based Systems \(cu31\)
Microsoft microsoft Sql Server 2019 For X64-based Systems \(cu32\)
Microsoft microsoft Sql Server 2022 For X64-based Systems \(cu27\)
Microsoft microsoft Sql Server 2025 For X64-based Systems \(cu9\)
Microsoft sql Server 2017
Microsoft sql Server 2019
Microsoft sql Server 2022
Microsoft sql Server 2025
References
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-13T22:23:47.295Z

Reserved: 2026-09-21T18:23:52.967Z

Link: CVE-2026-94520

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-13T21:19:58.337

Modified: 2026-10-13T21:19:58.337

Link: CVE-2026-94520

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses