---
id: CVE-2026-57088
title: >-
  Improper access control in Extensible Storage Engine (ESENT) allows an
  authorized attacker to elevate privileges locally.
summary: >-
  Improper access control in Extensible Storage Engine (ESENT) allows an
  authorized attacker to elevate privileges locally.
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-284
vendor: microsoft
product: windows_10_1809
affected:
  - windows_10_1809 < 10.0.17763.9020
  - windows_server_2019 < 10.0.17763.9020
  - windows_server_2022 < 10.0.20348.5386
  - windows_server_2025 < 10.0.26100.33158
patched:
  - windows_10_1809 10.0.17763.9020
  - windows_server_2019 10.0.17763.9020
  - windows_server_2022 10.0.20348.5386
  - windows_server_2025 10.0.26100.33158
published: '2026-07-14'
updated: '2026-07-17'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-57088'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57088'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.00298
epssPercentile: 0.20056
ingestedAt: '2026-07-18T13:23:33.547Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-07-22T00:00:00+00:00'
---

## Overview

Improper access control in Extensible Storage Engine (ESENT) allows an authorized attacker to elevate privileges locally.

## Affected

- `windows_10_1809 < 10.0.17763.9020`
- `windows_server_2019 < 10.0.17763.9020`
- `windows_server_2022 < 10.0.20348.5386`
- `windows_server_2025 < 10.0.26100.33158`

## Remediation

Upgrade past the affected range:

- `windows_10_1809 10.0.17763.9020`
- `windows_server_2019 10.0.17763.9020`
- `windows_server_2022 10.0.20348.5386`
- `windows_server_2025 10.0.26100.33158`