---
id: CVE-2026-67390
title: >-
  Buffer over-read in SQL Server allows an authorized attacker to disclose
  information over a network.
summary: >-
  Buffer over-read in SQL Server allows an authorized attacker to disclose
  information over a network.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-126
vendor: microsoft
product: sql_server_2017
affected:
  - sql_server_2017 < 14.0.2130.4
  - 'sql_server_2017 >= 14.0.3006.16, < 14.0.3550.4'
  - sql_server_2019 < 15.0.2190.7
  - 'sql_server_2019 >= 15.0.4003.23, < 15.0.4490.9'
  - sql_server_2022 < 16.0.1200.5
  - 'sql_server_2022 >= 16.0.4003.1, < 16.0.4275.2'
  - sql_server_2025 < 17.0.1135.8
  - 'sql_server_2025 >= 17.0.4006.2, < 17.0.4085.5'
patched:
  - sql_server_2017 14.0.3550.4
  - sql_server_2019 15.0.4490.9
  - sql_server_2022 16.0.4275.2
  - sql_server_2025 17.0.4085.5
published: '2026-09-08'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T18:43:37.733'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-67390'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67390'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.00953
epssPercentile: 0.59816
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-08T19:48:46.333943Z'
ingestedAt: '2026-09-08T19:08:49.605Z'
---

## Overview

Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network.

## Affected

- `sql_server_2017 < 14.0.2130.4`
- `sql_server_2017 >= 14.0.3006.16, < 14.0.3550.4`
- `sql_server_2019 < 15.0.2190.7`
- `sql_server_2019 >= 15.0.4003.23, < 15.0.4490.9`
- `sql_server_2022 < 16.0.1200.5`
- `sql_server_2022 >= 16.0.4003.1, < 16.0.4275.2`
- `sql_server_2025 < 17.0.1135.8`
- `sql_server_2025 >= 17.0.4006.2, < 17.0.4085.5`

## Remediation

Upgrade past the affected range:

- `sql_server_2017 14.0.3550.4`
- `sql_server_2019 15.0.4490.9`
- `sql_server_2022 16.0.4275.2`
- `sql_server_2025 17.0.4085.5`