CVE-2025-43715

CVSS 8.1 HIGHEPSS 0.2%CWE-754

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

17 Apr 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Nullsoft · Nullsoft Scriptable Install System

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References

https://nsis.sourceforge.io/Docs/AppendixF.html#v3.11-rl https://sourceforge.net/p/nsis/bugs/1315/