CVE-2026-88083: CWE-121: Stack-based Buffer Overflow in Microsoft Microsoft SQL Server 2022 (CU 26)
Description
Stack-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 7.5high
Affected software
Microsoft
Microsoft SQL Server 2022 (CU 26)
Microsoft
Microsoft SQL Server 2022 (GDR)
Microsoft
Microsoft SQL Server 2022 for x64-based Systems (CU27)
Microsoft
Microsoft SQL Server 2025 (CU8)
Microsoft
Microsoft SQL Server 2025 for x64-based Systems (CU9)
Microsoft
Microsoft SQL Server 2025 for x64-based Systems (GDR)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a stack-based buffer overflow in Microsoft SQL Server 2022 (CU 26) that enables remote code execution by an unauthorized attacker over a network. The CVSS 3.1 vector indicates the attack requires network access with high attack complexity, no privileges, and user interaction. The impact includes high confidentiality, integrity, and availability impacts. Multiple version ranges of SQL Server 2022 are affected. Microsoft has published an official fix for this issue.
Potential Impact
Successful exploitation allows an unauthorized attacker to execute arbitrary code remotely on the affected Microsoft SQL Server 2022 instances, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the system at a high level.
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-2026-88083 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-09T21:47:30.203Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88083","vendor":"Microsoft"}]
Threat ID: 6ace9d332cdf04f656af1d9f
Added to database: 10/13/2026, 21:05:55 UTC
Last enriched: 10/13/2026, 21:18:22 UTC
Last updated: 10/13/2026, 22:50:43 UTC
Views: 7
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