{"id":"UBUNTU-CVE-2025-43715","details":"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.","modified":"2026-05-20T16:23:28.676585920Z","published":"2025-04-17T03:15:00Z","upstream":["CVE-2025-43715"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-43715"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-43715"},{"type":"REPORT","url":"https://sourceforge.net/p/nsis/bugs/1315/"},{"type":"REPORT","url":"https://nsis.sourceforge.io/Docs/AppendixF.html#v3.11-rl"}],"affected":[{"package":{"name":"nsis","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/nsis?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.46-7","2.46-7ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"nsis","binary_version":"2.46-7ubuntu0.1~esm1"},{"binary_name":"nsis-common","binary_version":"2.46-7ubuntu0.1~esm1"},{"binary_name":"nsis-pluginapi","binary_version":"2.46-7ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43715.json"}},{"package":{"name":"nsis","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/nsis?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.46-10.1","2.48-2","2.50-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.50-1","binary_name":"nsis"},{"binary_name":"nsis-common","binary_version":"2.50-1"},{"binary_name":"nsis-pluginapi","binary_version":"2.50-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43715.json"}},{"package":{"name":"nsis","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/nsis?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.51-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.51-1","binary_name":"nsis"},{"binary_name":"nsis-common","binary_version":"2.51-1"},{"binary_version":"2.51-1","binary_name":"nsis-pluginapi"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43715.json"}},{"package":{"name":"nsis","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nsis?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.04-1","3.04-2","3.05-1","3.05-2"],"ecosystem_specific":{"binaries":[{"binary_name":"nsis","binary_version":"3.05-2"},{"binary_name":"nsis-common","binary_version":"3.05-2"},{"binary_version":"3.05-2","binary_name":"nsis-pluginapi"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43715.json"}},{"package":{"name":"nsis","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/nsis?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.06.1-1","3.08-1","3.08-2"],"ecosystem_specific":{"binaries":[{"binary_name":"nsis","binary_version":"3.08-2"},{"binary_name":"nsis-common","binary_version":"3.08-2"},{"binary_name":"nsis-pluginapi","binary_version":"3.08-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43715.json"}},{"package":{"name":"nsis","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/nsis?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.09-1","3.09-2","3.09-3","3.09-4","3.09-4ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"nsis","binary_version":"3.09-4ubuntu1"},{"binary_version":"3.09-4ubuntu1","binary_name":"nsis-common"},{"binary_version":"3.09-4ubuntu1","binary_name":"nsis-pluginapi"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43715.json"}},{"package":{"name":"nsis","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/nsis?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10-2ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"nsis","binary_version":"3.10-2ubuntu1"},{"binary_version":"3.10-2ubuntu1","binary_name":"nsis-common"},{"binary_name":"nsis-pluginapi","binary_version":"3.10-2ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43715.json"}},{"package":{"name":"nsis","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/nsis?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10-2ubuntu1","3.10-2ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.10-2ubuntu2","binary_name":"nsis"},{"binary_version":"3.10-2ubuntu2","binary_name":"nsis-common"},{"binary_name":"nsis-pluginapi","binary_version":"3.10-2ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43715.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}