---
id: CVE-2026-47297
title: >-
  Deserialization of untrusted data in SQL Server allows an unauthorized
  attacker to execute code over a network.
summary: >-
  Deserialization of untrusted data in SQL Server allows an unauthorized
  attacker to execute code over a network.
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-502
vendor: Microsoft
product: Microsoft SQL Server 2019 (CU 32)
affected:
  - sql_server_2019_cu_32 >= 15.0.0.0 < 15.0.4490.9
  - sql_server_2019_gdr >= 15.0.0 < 15.0.2190.7
  - sql_server_2022_cu_26 >= 16.0.0.0 < 16.0.4275.2
  - sql_server_2022_gdr >= 16.0.0 < 16.0.1200.5
  - sql_server_2025_cu8 >= 17.0.0.0 < 17.0.4085.5
  - sql_server_2025_for_x64-based_systems_gdr >= 17.0.1050.2 < 17.0.1135.8
published: '2026-09-08'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T19:17:27.993'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-47297'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47297'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-09T18:19:53.291184Z'
epss: 0.01137
epssPercentile: 0.65158
ingestedAt: '2026-09-08T18:07:34.913Z'
---

## Overview

Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.