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4 vulnerabilities found for Nullsoft Scriptable Install System by Nullsoft

CVE-2026-42171 (GCVE-0-2026-42171)

Vulnerability from nvd – Published: 2026-04-24 21:20 – Updated: 2026-04-25 19:33
VLAI?
Summary
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).
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-427 - Uncontrolled Search Path Element
Assigner
References
Impacted products
Vendor Product Version
Nullsoft Nullsoft Scriptable Install System Affected: 3.06.1 , < 3.12 (custom)
Create a notification for this product.
Show details on NVD website
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CVE-2025-43715 (GCVE-0-2025-43715)

Vulnerability from nvd – Published: 2025-04-17 00:00 – Updated: 2025-04-17 19:16
VLAI?
Summary
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.
Severity ?
8.1 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
Vendor Product Version
Nullsoft Nullsoft Scriptable Install System Affected: 0 , < 3.11 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-42171 (GCVE-0-2026-42171)

Vulnerability from cvelistv5 – Published: 2026-04-24 21:20 – Updated: 2026-04-25 19:33
VLAI?
Summary
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).
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-427 - Uncontrolled Search Path Element
Assigner
References
Impacted products
Vendor Product Version
Nullsoft Nullsoft Scriptable Install System Affected: 3.06.1 , < 3.12 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-43715 (GCVE-0-2025-43715)

Vulnerability from cvelistv5 – Published: 2025-04-17 00:00 – Updated: 2025-04-17 19:16
VLAI?
Summary
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.
Severity ?
8.1 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
Vendor Product Version
Nullsoft Nullsoft Scriptable Install System Affected: 0 , < 3.11 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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