CVE-2026-42171
High · 7.8CVSS
7.8
EPSS
0.2%
Published
Apr 24, 2026
CISA due date
—
The record
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).
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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