Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Microsoft Microsoft SQL Server 2017 (CU 31) affected
Version Status Constraints
14.0.0 affected < 14.0.3550.4
Microsoft Microsoft SQL Server 2017 (GDR) affected
Version Status Constraints
14.0.0 affected < 14.0.2130.4
Microsoft Microsoft SQL Server 2019 (CU 32) affected
Version Status Constraints
15.0.0.0 affected < 15.0.4490.9
Microsoft Microsoft SQL Server 2019 (GDR) affected
Version Status Constraints
15.0.0 affected < 15.0.2190.7
Microsoft Microsoft SQL Server 2022 (CU 26) affected
Version Status Constraints
16.0.0.0 affected < 16.0.4275.2
Microsoft Microsoft SQL Server 2022 (GDR) affected
Version Status Constraints
16.0.0 affected < 16.0.1200.5
Microsoft Microsoft SQL Server 2025 (CU8) affected
Version Status Constraints
17.0.0.0 affected < 17.0.4085.5
Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) affected
Version Status Constraints
17.0.1050.2 affected < 17.0.1135.8

No data.

No data.

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No data.

Project Subscriptions

Vendors Products
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Sql Server 2017 Subscribe
Sql Server 2019 Subscribe
Sql Server 2022 Subscribe
Sql Server 2025 Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67388 cve-icon cve-icon
History

Tue, 08 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Title Microsoft SQL Server Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft sql Server 2017
Microsoft sql Server 2019
Microsoft sql Server 2022
Microsoft sql Server 2025
Weaknesses CWE-122
CPEs 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 sql Server 2017
Microsoft sql Server 2019
Microsoft sql Server 2022
Microsoft sql Server 2025
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-09-08T18:34:39.952Z

Reserved: 2026-07-29T14:57:03.842Z

Link: CVE-2026-67388

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-08T18:18:22.263

Modified: 2026-09-08T18:38:46.007

Link: CVE-2026-67388

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-08T19:15:16Z

Weaknesses