CVE catalog

CVE-2025-43715

nsis: CVE-2025-43715

Severity: High · CVSS 8.1CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Published: Apr 17, 2025, 3:15:16 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.33% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	nsis	sid	`3.12-1`	fixed
Debian	nsis	forky	`3.12-1`	fixed
Debian	nsis	trixie	`3.11-1`	fixed
Debian	nsis	bookworm	`3.08-3+deb12u1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	nsis	source	sid	`3.11-1`	not yet assigned	Not reported	[1103524]
Debian	nsis	source	forky	`3.11-1`	not yet assigned	Not reported	[1103524]
Debian	nsis	source	trixie	`3.11-1`	not yet assigned	Not reported	[1103524]
Debian	nsis	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1103524]

[Debian bug #1103524]

Notes

[bookworm] nsis: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[nsis]Affected
Details (2)
- 3.08-3+deb12u1 · amd64 · bookworm
  Affected
  dsa · nsis · debian · bookworm
- 3.08-3+deb12u1 · arm64 · bookworm
  Affected
  dsa · nsis · debian · bookworm
[nsis-common]Affected
Source package: [nsis]
Details (2)
- 3.08-3+deb12u1 · all · bookworm
  Affected
  dsa · nsis · debian · bookworm
- 3.08-3+deb12u1 · all · bookworm
  Affected
  dsa · nsis · debian · bookworm
[nsis-doc]Affected
Source package: [nsis]
Details (2)
- 3.08-3+deb12u1 · all · bookworm
  Affected
  dsa · nsis · debian · bookworm
- 3.08-3+deb12u1 · all · bookworm
  Affected
  dsa · nsis · debian · bookworm
[nsis-pluginapi]Affected
Source package: [nsis]
Details (2)
- 3.08-3+deb12u1 · all · bookworm
  Affected
  dsa · nsis · debian · bookworm
- 3.08-3+deb12u1 · all · bookworm
  Affected
  dsa · nsis · debian · bookworm

Observed: Oct 24, 2026, 10:54:48 PM UTC

References

[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)]