---
id: CVE-2026-88086
title: >-
  Out-of-bounds read in SQL Server allows an unauthorized attacker to disclose
  information over an adjacent network.
summary: >-
  Out-of-bounds read in SQL Server allows an unauthorized attacker to disclose
  information over an adjacent network.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-125
vendor: Microsoft
product: Microsoft SQL Server 2019 (GDR)
affected:
  - sql_server_2019_gdr >= 15.0.0 < 15.0.2200.2
  - sql_server_2019_for_x64-based_systems_cu32 >= 15.0.4003.23 < 15.0.4500.2
  - sql_server_2022_gdr >= 16.0.0 < 16.0.1210.3
  - sql_server_2022_for_x64-based_systems_cu27 >= 16.0.4003.1 < 16.0.4305.5
  - sql_server_2025_cu8 -
  - sql_server_2025_for_x64-based_systems_cu9 >= 17.0.4006.2 < 17.0.5015.4
  - sql_server_2025_for_x64-based_systems_gdr >= 17.0.1050.2 < 17.0.1145.4
published: '2026-10-13'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T20:39:54.150'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88086'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88086'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.00363
epssPercentile: 0.29949
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-13T21:55:43.350396Z'
ingestedAt: '2026-10-13T21:58:14.194Z'
---

## Overview

Out-of-bounds read in SQL Server allows an unauthorized attacker to disclose information over an adjacent network.

## Remediation

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