What is CVE-2025-43715?

CVE-2025-43715 is a high-severity vulnerability in Nullsoft Scriptable Install System, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 8.1/10. Published 2025-04-17.

How severe is CVE-2025-43715?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Nullsoft Scriptable Install System

CVE-2025-43715

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…

EPSS: 0.002 (39.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Nullsoft Scriptable Install System — versions 0

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

Frequently asked questions

What is CVE-2025-43715?: CVE-2025-43715 is a high-severity vulnerability in Nullsoft Scriptable Install System, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 8.1/10. Published 2025-04-17.
How severe is CVE-2025-43715?: High severity. CVSS v3 base score is 8.1 out of 10.