CVE-2025-43715HIGH 8.1EPSS p6.1%

CVE-2025-43715CVE-2025-43715

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.

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS0.17% probability of exploitation · percentile 6.1% · 2026-06-19T12:03:05Z
Published2025-04-17
Last modified2026-04-15

Underlying weaknesses· 1

CWE-754

References

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

1

TypeTargetConfidenceTier
WeaknessImproper Check for Unusual or Exceptional Conditionscwe-7540%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2025-36640
CVE
CVE-2025-68623
CVE
Microsoft Windows Installer Improper Privilege Management Vulnerability
CVE
Microsoft Windows Installer Privilege Escalation Vulnerability
CVE
Microsoft Windows Race Condition Vulnerability
CVE
CVE-2025-33067
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.