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CVE-2026-42171

HIGH

7.8

Beschreibung

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).

CVE Details

CVSS v3.1 Bewertung7.8

SchweregradHIGH

CVSS VektorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AngriffsvektorLOCAL

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionREQUIRED

Veroffentlicht4/24/2026

Zuletzt geandert4/24/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-427

Referenzen

https://github.com/NSIS-Dev/nsis/blob/7359413009afd4f0fff472d841fc2f2cc0e0a5f8/Source/exehead/util.c#L475-L484(cve@mitre.org)

https://github.com/NSIS-Dev/nsis/commit/8e6f02205d5f22da6c7855dbfe59b2af667330ca(cve@mitre.org)

https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-gettempfilename(cve@mitre.org)

https://nsis.sourceforge.io/Docs/AppendixF.html#v3.12-cl(cve@mitre.org)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.