Microsoft SQL Server: Information disclosure through out-of-bounds read
Summary
Microsoft SQL Server contains an out-of-bounds read that can disclose information. An attacker with a valid database login can trigger the flaw over the network. The impact is limited to information disclosure, with no integrity or availability impact.
Affected
- SQL Server 2017 (GDR): 14.0.0 to before 14.0.2150.2
- SQL Server 2017 for x64-based Systems (CU31): 14.0.3006.16 to before 14.0.3570.2
- SQL Server 2019 (GDR): 15.0.0 to before 15.0.2210.4
- SQL Server 2019 for x64-based Systems (CU32): 15.0.4003.23 to before 15.0.4510.2
- SQL Server 2022 (GDR): 16.0.0 to before 16.0.1220.3
- SQL Server 2022 for x64-based Systems (CU27): 16.0.4003.1 to before 16.0.4315.2
- SQL Server 2025 CU10: 17.0.4006.0 to before 17.0.5045.3
- SQL Server 2025 for x64-based Systems (GDR): 17.0.1050.2 to before 17.0.1155.3
Fixed in
- SQL Server 2017 (GDR): 14.0.2150.2
- SQL Server 2017 for x64-based Systems (CU31): 14.0.3570.2
- SQL Server 2019 (GDR): 15.0.2210.4
- SQL Server 2019 for x64-based Systems (CU32): 15.0.4510.2
- SQL Server 2022 (GDR): 16.0.1220.3
- SQL Server 2022 for x64-based Systems (CU27): 16.0.4315.2
- SQL Server 2025 CU10: 17.0.5045.3
- SQL Server 2025 for x64-based Systems (GDR): 17.0.1155.3
- Verify the exact builds and update packages in the Microsoft Security Update Guide before rollout.
Workaround
Unknown.
- No vendor workaround was identified for this CVE.
- Restrict which accounts hold database logon rights until the update is installed.
Exploitation
- No exploitation in the wild is known.
- Rapid7 rates exploitation as less likely and reports no public disclosure.
- The CVE record's temporal vector shows exploit maturity as unproven.
- No public proof-of-concept was found.
Our recommendation
- Identify all SQL Server instances and their branch and build (2017, 2019, 2022, 2025).
- Install the November 2026 security update for each affected branch, prioritising internet-facing or shared-credential instances.
- Do not expose port 1433 directly to the internet.
- Review database accounts and remove unused logins.
- Assess whether the disclosed data contains personal data relevant for Swiss revFADP obligations.
Information from Microsoft (Patch Tuesday November 2026)
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- CVE Record CVE-2026-116932 www.cve.org
- Microsoft Security Update Guide CVE-2026-116932 msrc.microsoft.com
- Rapid7 Patch Tuesday November 2026 www.rapid7.com
- Senserva KB 5132746 senserva.com
- Microsoft KB5129299 SQL Server 2025 CU10 (November 2026) support.microsoft.com
- Offseq threat index entry radar.offseq.com
- Strix CVE-2026-116932 www.strix.ai
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 12:16.
Original description (NVD)
Out-of-bounds read in SQL Server allows an authorized attacker to disclose information over a network.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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