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CVE-2026-42171

—
CVSS 3.1
7.8 high
EPSS
<1%p11
Published
()
Modified
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).

Vendors
nullsoft
Products
nullsoft scriptable install system
Weakness
CWE-427
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD CVE.org GitHub PoCs EPSS (0.2%)

In the news

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