CVE-2026-76159
High
Description
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.
SeverityHigh
CVSS7.0
Exploit probability—
ProductDuplicati
PublishedSep 15, 2026
First seenSep 15, 2026
Weakness typeCWE-732CWE-732
How to fix
Update
- Duplicati Duplicativ2.4.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Duplicati Duplicati | v < v2.4.0.0 | v2.4.0.0 |
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