CVE-2026-42171
Received
Received - Intake
BaseFortify
Publication date: 2026-04-24
Last updated on: 2026-05-18
Assigner: MITRE
Description
Description
NSIS (Nullsoft Scriptable Install System) 3.06.1 before 3.12 sometimes uses the Low IL temp directory when executing as SYSTEM, allowing local attackers to gain privileges (if they can cause my_GetTempFileName to return 0, as shown in the references).
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| nullsoft | nullsoft_scriptable_install_system | From 3.06.1 (inc) to 3.12 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-427 | The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors. |
Attack-Flow Graph
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