---
id: CVE-2026-76159
title: >-
  Incorrect Permission Assignment for Critical Resource in the  configuration
  loader of Duplicati for Windows versions before v2.4.0.0 allows a local
  low-privileged attacker to escalate       privileges to NT AUTHORITY\SYSTEM
  via an attack…
summary: >-
  Incorrect Permission Assignment for Critical Resource in the  configuration
  loader of Duplicati for Windows versions before v2.4.0.0 allows a local
  low-privileged attacker to escalate       privileges to NT AUTHORITY\SYSTEM
  via an attack…
severity: high
cvss: 7
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-732
vendor: Duplicati
product: Duplicati
affected:
  - Duplicati < v2.4.0.0
published: '2026-09-15'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T13:42:48.440'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76159'
references:
  - url: 'https://zuso.ai/advisory/'
    label: ART@zuso.ai
tags:
  - nvd
  - cve.org
epss: 0.00098
epssPercentile: 0.00872
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-15T13:32:58.660934Z'
cvssSource: cna
ingestedAt: '2026-09-15T09:34:49.383Z'
---

## Overview

Incorrect Permission Assignment for Critical Resource in the  configuration loader of Duplicati for Windows versions before v2.4.0.0 allows a local low-privileged attacker to escalate       privileges to NT AUTHORITY\SYSTEM via an attacker-controlled preload.json file.

## Remediation

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