CVE-2026-68784: CWE-125: Out-of-bounds Read in Microsoft Microsoft SQL Server 2017 (CU 31)
Description
CVE-2026-68784 is an out-of-bounds read vulnerability in Microsoft SQL Server 2017 (CU 31) that allows an authorized attacker to disclose information over a network. The vulnerability affects multiple versions of Microsoft SQL Server 2017, 2019, 2022, and 2024 builds prior to specific fixed versions. It has a medium severity with a CVSS score of 6.5. An official fix is available from Microsoft.
CVSS v3.1
Score 6.5medium
Affected software
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)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-125 (Out-of-bounds Read), exists in Microsoft SQL Server 2017 (CU 31) and related versions. It allows an attacker with authorized access to cause the server to read memory outside the intended bounds, potentially disclosing sensitive information over the network. The issue affects several versions across SQL Server 2017, 2019, 2022, and 2024 builds prior to their respective fixed versions. Microsoft has published an official fix to address this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to disclose sensitive information from memory over the network. The vulnerability does not allow for integrity or availability impact, only confidentiality is affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security updates provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68784 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-31T16:33:08.215Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68784","vendor":"Microsoft"}]
Threat ID: 6aa044d1acd9273b49fa7c0a
Added to database: 09/08/2026, 17:24:33 UTC
Last enriched: 10/16/2026, 20:53:09 UTC
Last updated: 10/21/2026, 13:40:30 UTC
Views: 20
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