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Microsoft SQL Server: Elevation of privilege via SQL injection

CVE-2026-118116High 7.0

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Summary

Microsoft SQL Server 2017, 2019, 2022 and 2025 contains a flaw classified as SQL injection (CWE-89) that allows an authorized, low-privileged attacker to elevate privileges locally on the database host. Exploitation requires local access and has high attack complexity. Microsoft's CVE record and the CISA SSVC assessment show no known exploitation, and no public proof of concept was found.

Affected

  • SQL Server 2017 GDR: 14.0.0 to before 14.0.2150.2
  • SQL Server 2017 CU31 (x64): 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 CU32 (x64): 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 CU27 (x64): 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 GDR (x64): 17.0.1050.2 to before 17.0.1155.3

Fixed in

  • SQL Server 2017 GDR: build 14.0.2150.2 (KB5132749, verify in full article)
  • SQL Server 2017 CU31: build 14.0.3570.2 (KB number unknown)
  • SQL Server 2019 GDR: build 15.0.2210.4 (KB5132751)
  • SQL Server 2019 CU32 GDR: build 15.0.4510.2 (KB5132745)
  • SQL Server 2022 GDR: build 16.0.1220.3 (KB5132747)
  • SQL Server 2022 CU27 GDR2: build 16.0.4315.2 (KB5129300)
  • SQL Server 2025 CU10 GDR: build 17.0.5045.3 (KB5129299)
  • SQL Server 2025 GDR: build 17.0.1155.3 (KB5132748)

Workaround

Unknown. No vendor-documented workaround was found; patching is the available remedy. Merge replication may be relevant to the fix area, but this is unconfirmed.

Exploitation

  • No evidence of exploitation in the wild found.
  • CISA SSVC: exploitation none, not automatable, total technical impact.
  • CVSS temporal exploit maturity: Unproven (E:U).
  • No public proof of concept found; this is not confirmed absent.
  • NVD status at publication: Awaiting Analysis.

Our recommendation

  • Inventory all SQL Server instances and their builds.
  • Apply the November 2026 GDR or CU for each branch as part of the normal maintenance cycle.
  • Review accounts with low-privilege database access and remove unneeded rights.
  • Check whether merge replication is enabled and verify the fix against the full Microsoft KB article.
  • Re-check the MSRC advisory before finalising the client report.

Information from Microsoft (Patch Tuesday November 2026)

Severity (Microsoft)
Important
Impact
Elevation of privilege – SQL Server
Status on Patch Tuesday
Neither exploited nor publicly disclosed
Exploitability assessment
Exploitation less likely
Product family
SQL Server
Updates (KB)
KB5132751, KB5129299, KB5132747, KB5132749, KB5129300, KB5132745

Entry in the Microsoft Security Update Guide

Public exploits

PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.

Research sources

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, 08:56.

Original description (NVD)

Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges locally.

NVD references (1)

Sources

The tracker combines official, freely usable data sources – updated continuously:

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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