CVE-2026-73029: CWE-126: Buffer Over-read in Microsoft Microsoft SQL Server 2019 (CU 32)
Description
Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network.
CVSS v3.1
6.5medium
Affected software
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 (CVE-2026-73029) involves a buffer over-read in Microsoft SQL Server 2019 (CU 32) and related versions. An authorized attacker with low complexity can exploit this flaw remotely without user interaction to disclose sensitive information over the network. The issue is classified under CWE-126 (Buffer Over-read). Multiple affected version ranges across SQL Server 2019, 2022, and 2024 releases are identified. Microsoft has published an official fix to address this vulnerability.
Potential Impact
Successful exploitation allows an authorized attacker to read memory beyond the intended buffer boundaries, leading to information disclosure over the network. This could expose sensitive data but does not impact integrity or availability. The vulnerability requires low attack complexity and privileges but no user interaction.
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-2026-73029 to remediate this vulnerability. No additional mitigations are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 08/10/2026
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [object Object]
Threat ID: 6aa04555acd9273b49fa9e9d
Added to database: 09/08/2026, 17:26:45 UTC
Last enriched: 10/14/2026, 21:55:35 UTC
Last updated: 10/24/2026, 08:45:12 UTC
Views: 23
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