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CVE-2026-16157

HIGH
7.8
CVSS 3.1
Description
Duplicati v2.3.0.1 backup software gives Authenticated Users MODIFY permissions that propagate to all subdirectories. Installing the software outside of the Program Files directory, or on a custom path, creates a LocalSystem service running from a directory that any standard local user can write to. A standard local user can overwrite any DLL in the service directory. On service restart, the OS loads the attacker's DLL before any managed code runs, executing arbitrary code as SYSTEM.

Metadata

CVE ID
CVE-2026-16157
State
PUBLISHED
Assigner
certcc
Reserved
2026-07-17 19:45 UTC
Published
2026-07-22 17:29 UTC
Last updated
2026-07-27 17:03 UTC
Primary CWE
CWE-732
CWE-732 Incorrect Permission Assignment for Critical Resourc…
Vendor / Product
Duplicati / Duplicati
Sources
cve.org  ·  NVD

Severity & Metrics

7.8 HIGH CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
Duplicati Duplicati — 2.3.0.1
Weakness (CWE)
CWESourceDescription
— cna CWE-732: Incorrect Permission Assignment for Critical Resource
CWE-732 adp CWE-732 Incorrect Permission Assignment for Critical Resource
CVSS scores (1)
ScoreSeverityVersionSourceVector
7.8 HIGH 3.1 adp CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References (1)
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