CVE-2025-43715
8.1CVSSHIGH
Description
Nullsoft Scriptable Install System (NSIS) before 3.11 on Windows allows local users to escalate privileges to SYSTEM during an installation, because the temporary plugins directory is created under %WINDIR%\temp and unprivileged users can place a crafted executable file by winning a race condition. This occurs because EW_CREATEDIR does not always set the CreateRestrictedDirectory error flag.
CVSS Vector Breakdown
Exploitability
AV:LAttack VectorLocal
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:CScopeChanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Exploitability
Official Patch Available
References
https://sourceforge.net/p/nsis/bugs/1315/
sourceforge.net
https://nsis.sourceforge.io/Docs/AppendixF.html#v3.11-rl
nsis.sourceforge.io
https://cert-portal.siemens.com/productcert/csaf/ssa-563922.json
cert-portal.siemens.com
and 12 more references View all →
Timeline
Published
Apr 17, 2025
Last Updated
Apr 17, 2025
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