CVE-2025-43715
highpriority · track · 0EPSS 0.003 · 26 %ileDEEUNLRUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedSIMATIC Technology Package TPCamGen (6ES7823-0FE30-1AA0)siemens_psirt
Update to V1.3.1 or later version To obtain the patch and update information, please contact your regular Siemens contact person.
- MitigationSIMATIC Technology Package TPCamGen (6ES7823-0FE30-1AA0)siemens_psirt
Ensure that no other users are logged in and that no unknown programs are running before starting the installation of the affected products
- MitigationSIMOTION OA MIIF (6AU1820-3DA20-0AB0)siemens_psirt
Ensure that no other users are logged in and that no unknown programs are running before starting the installation of the affected products
- MitigationSIMOTION OACAMGEN (6AU1820-3EA20-0AB0)siemens_psirt
Ensure that no other users are logged in and that no unknown programs are running before starting the installation of the affected products
- MitigationSIMOTION OALECO (6AU1820-3HA20-0AB0)siemens_psirt
Ensure that no other users are logged in and that no unknown programs are running before starting the installation of the affected products
- MitigationSIMOTION OAVIBX (6AU1820-3CA20-0AB0)siemens_psirt
Ensure that no other users are logged in and that no unknown programs are running before starting the installation of the affected products
- MitigationSIMATIC Technology Package TPCamGen (6ES7823-0FE30-1AA0)cisa_csaf_ot
Ensure that no other users are logged in and that no unknown programs are running before starting the installation of the affected products
- MitigationSIMOTION OA MIIF (6AU1820-3DA20-0AB0)cisa_csaf_ot
Ensure that no other users are logged in and that no unknown programs are running before starting the installation of the affected products
- MitigationSIMOTION OACAMGEN (6AU1820-3EA20-0AB0)cisa_csaf_ot
Ensure that no other users are logged in and that no unknown programs are running before starting the installation of the affected products
- MitigationSIMOTION OALECO (6AU1820-3HA20-0AB0)cisa_csaf_ot
Ensure that no other users are logged in and that no unknown programs are running before starting the installation of the affected products
- MitigationSIMOTION OAVIBX (6AU1820-3CA20-0AB0)cisa_csaf_ot
Ensure that no other users are logged in and that no unknown programs are running before starting the installation of the affected products
- No fix availableSIMATIC Technology Package TPCamGen (6ES7823-0FE30-1AA0)cisa_csaf_ot
Currently no fix is available
- No fix plannedSIMOTION OA MIIF (6AU1820-3DA20-0AB0)siemens_psirt
Currently no fix is planned
- No fix plannedSIMOTION OACAMGEN (6AU1820-3EA20-0AB0)siemens_psirt
Currently no fix is planned
- No fix plannedSIMOTION OALECO (6AU1820-3HA20-0AB0)siemens_psirt
Currently no fix is planned
- No fix plannedSIMOTION OAVIBX (6AU1820-3CA20-0AB0)siemens_psirt
Currently no fix is planned
- No fix plannedSIMOTION OA MIIF (6AU1820-3DA20-0AB0)cisa_csaf_ot
Currently no fix is planned
- No fix plannedSIMOTION OACAMGEN (6AU1820-3EA20-0AB0)cisa_csaf_ot
Currently no fix is planned
- No fix plannedSIMOTION OALECO (6AU1820-3HA20-0AB0)cisa_csaf_ot
Currently no fix is planned
- No fix plannedSIMOTION OAVIBX (6AU1820-3CA20-0AB0)cisa_csaf_ot
Currently no fix is planned
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (30)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- NCSC-2025-0274Kwetsbaarheden verholpen in Siemens productenNL2025-09-09csaf · ncsc_nlNL
Siemens heeft kwetsbaarheden verholpen in diverse producten als Apogee, Industial Edge, RUGGEDCOM, SIMATIC, SIMOTION en SINAMICS.
- SSA-563922SSA-563922: Local Privilege Escalation Vulnerability in SIMOTION Tools2025-09-09csaf · siemens_psirtDE
Several tools for the SIMOTION system are affected by a local privilege escalation vulnerability. This could allow an attacker to execute arbitrary code with SYSTEM privileges when a legitimate user installs an application that uses the affected setup component. This vulnerability poses a risk only during setup and installation phase of the affected tools. Siemens has released a new version for SIMATIC Technology Package TPCamGen and recommends to update to the latest version. Siemens recommends specific mitigations for products where fixes are not or not yet available.
- WID-SEC-W-2025-1886nmap: Schwachstelle ermöglicht PrivilegieneskalationDeutsch2025-08-21csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in nmap ausnutzen, um seine Privilegien zu erhöhen.
- ICSA-25-254-01Siemens SIMOTION Tools2025-09-09icsa · cisa_csaf_otUS
Several tools for the SIMOTION system are affected by a local privilege escalation vulnerability. This could allow an attacker to execute arbitrary code with SYSTEM privileges when a legitimate user installs an application that uses the affected setup component. This vulnerability poses a risk only during setup and installation phase of the affected tools. Siemens is preparing fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://nsis.sourceforge.io/Docs/AppendixF.html#v3.11-rlcnnvd
- https://nsis.sourceforge.io/DownloadPatchcnnvd
- https://sourceforge.net/p/nsis/bugs/1315/cnnvd
- https://nsis.sourceforge.io/Docs/AppendixF.html#v3.11-rlenisa_euvd
- https://sourceforge.net/p/nsis/bugs/1315/enisa_euvd
- https://cert-portal.siemens.com/productcert/html/ssa-563922.htmlnvd
- https://nsis.sourceforge.io/Docs/AppendixF.html#v3.11-rlnvd
- https://sourceforge.net/p/nsis/bugs/1315/nvd
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