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CVE-2026-42171

HIGH

7.8

Descripcion

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).

Detalles CVE

Puntuacion CVSS v3.17.8

SeveridadHIGH

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

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioREQUIRED

Publicado4/24/2026

Ultima modificacion4/24/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-427

Referencias

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)

Correlaciones IOC

Sin correlaciones registradas

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