Duplicati CVE-2026-76159

Q: What is the CVSS score of CVE-2026-76159?

CVE-2026-76159 has a CVSS 4.0 base score of 7.0 (High). CVSS vector: 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

EUVD-2026-78330 HIGH

Incorrect Permission Assignment for Critical Resource (CWE-732)

2026-09-15 ZUSO ART

GHSA-8x3r-pmm8-3j9w

Privilege Escalation Microsoft Duplicati

7.0

CVSS 4.0 · Vendor: ZUSO ART

Severity by source

Vendor (ZUSO ART) PRIMARY

7.0 HIGH

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (ZUSO ART) · only source for this CVE.

CVSS VectorVendor: ZUSO ART

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Scope

Lifecycle Timeline

Analysis Generated

Sep 15, 2026 - 11:20 vuln.today

CVE Published

Sep 15, 2026 - 08:49 cve.org

HIGH 7.0

DescriptionCVE.org

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.

AnalysisAI

Let me synthesize this. CVE-2026-76159: Duplicati for Windows before v2.4.0.0, incorrect permission assignment (CWE-732) in configuration loader, allows local low-priv attacker to escalate to SYSTEM via attacker-controlled preload.json. …