Description
Use of uninitialized resource in SQL Server allows an authorized attacker to disclose information over a network.
Published: 2026-09-08
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Information Disclosure
Action: Apply Patch
AI Analysis

Impact

This vulnerability stems from the use of an uninitialized resource within SQL Server (CWE-908). An attacker who has authorized access can exploit the flaw to read sensitive data over a network connection. The weakness allows the disclosure of information that should be protected, potentially compromising confidentiality of databases and application data.

Affected Systems

Affected products are Microsoft SQL Server editions 2017, 2019, 2022, and 2025, limited to the cumulative update or GDR builds listed: SQL Server 2017 CU 31 and GDR; SQL Server 2019 CU 32 and GDR; SQL Server 2022 CU 26 and GDR; SQL Server 2025 CU 8 and GDR for x64-based systems.

Risk and Exploitability

The CVSS score of 6.5 indicates moderate severity. No EPSS score is available, and the vulnerability is not listed in the CISA KEV catalog. Exploitation requires the attacker to be authenticated and have network access to the SQL Server instance. Once the flaw is leveraged, data visibility is elevated, potentially giving the attacker insight into confidential database contents.

Generated by OpenCVE AI on September 8, 2026 at 19:44 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest cumulative update or GDR for the affected SQL Server version via the Microsoft update guide.
  • Restrict network access to the SQL Server instance by configuring firewall rules and limiting connections to trusted hosts.
  • Review audit logs for anomalous query activity and unauthorized data access patterns.

Generated by OpenCVE AI on September 8, 2026 at 19:44 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 16 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:sql_server_2017:*:*:*:*:*:*:x64:*

Sat, 12 Sep 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft microsoft Sql Server 2017 (cu 31)
Microsoft microsoft Sql Server 2017 (gdr)
Microsoft microsoft Sql Server 2019 (cu 32)
Microsoft microsoft Sql Server 2019 (gdr)
Microsoft microsoft Sql Server 2022 (cu 26)
Microsoft microsoft Sql Server 2022 (gdr)
Microsoft microsoft Sql Server 2025 (cu8)
Microsoft microsoft Sql Server 2025 For X64-based Systems (gdr)
Vendors & Products Microsoft microsoft Sql Server 2017 (cu 31)
Microsoft microsoft Sql Server 2017 (gdr)
Microsoft microsoft Sql Server 2019 (cu 32)
Microsoft microsoft Sql Server 2019 (gdr)
Microsoft microsoft Sql Server 2022 (cu 26)
Microsoft microsoft Sql Server 2022 (gdr)
Microsoft microsoft Sql Server 2025 (cu8)
Microsoft microsoft Sql Server 2025 For X64-based Systems (gdr)

Tue, 08 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


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

Type Values Removed Values Added
Description Use of uninitialized resource in SQL Server allows an authorized attacker to disclose information over a network.
Title Microsoft SQL Server Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft sql Server 2017
Microsoft sql Server 2019
Microsoft sql Server 2022
Microsoft sql Server 2025
Weaknesses CWE-908
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': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Microsoft Sql Server 2017 (cu 31) Microsoft Sql Server 2017 (gdr) Microsoft Sql Server 2019 (cu 32) Microsoft Sql Server 2019 (gdr) Microsoft Sql Server 2022 (cu 26) Microsoft Sql Server 2022 (gdr) Microsoft Sql Server 2025 (cu8) Microsoft Sql Server 2025 For X64-based Systems (gdr) Sql Server 2017 Sql Server 2019 Sql Server 2022 Sql Server 2025
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-09-25T21:34:20.762Z

Reserved: 2026-07-29T14:57:03.841Z

Link: CVE-2026-67386

cve-icon Vulnrichment

Updated: 2026-09-08T20:18:01.032Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-08T18:18:22.130

Modified: 2026-09-16T13:00:11.140

Link: CVE-2026-67386

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-12T21:00:12Z

Weaknesses
  • CWE-908

    Use of Uninitialized Resource