CVE-2025-23403

highpriority · track · 0EPSS 0.001 · 4 %ileDEEUNLRUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.15% (4th) EPSS
CVSS 7 · high
Is it mine?
22 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

A vulnerability has been identified in SIMATIC IPC DiagBase (All versions), SIMATIC IPC DiagMonitor (All versions). The affected device do not properly restrict the user permission for the registry key. This could allow an authenticated attacker to load vulnerable drivers into the system leading to privilege escalation or bypassing endpoint protection and other security measures.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

  • MitigationSIMATIC IPC DiagBasesiemens_psirt

    Remove the user privilege by modifying the registry manually or running a script. For more information refer the FAQ section at: https://support.industry.siemens.com/cs/document/109978178

  • MitigationSIMATIC IPC DiagMonitorsiemens_psirt

    Remove the user privilege by modifying the registry manually or running a script. For more information refer the FAQ section at: https://support.industry.siemens.com/cs/document/109978178

  • MitigationSIMATIC IPC DiagBasecisa_csaf_ot

    Remove the user privilege by modifying the registry manually or running a script. For more information refer the FAQ section at: https://support.industry.siemens.com/cs/document/109978178

  • MitigationSIMATIC IPC DiagMonitorcisa_csaf_ot

    Remove the user privilege by modifying the registry manually or running a script. For more information refer the FAQ section at: https://support.industry.siemens.com/cs/document/109978178

  • No fix plannedSIMATIC IPC DiagBasesiemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC IPC DiagMonitorsiemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC IPC DiagBasecisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC IPC DiagMonitorcisa_csaf_ot

    Currently no fix is planned

02

cvss

Technical severity, 0–10. One row per scoring source.

7.3
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.4–7.3

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL
v3.17highAV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · productcert@siemens.com DEexploitability 1 · impact 5.9
v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US
v4.07.3highCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.07.3highCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · productcert@siemens.com DE
v4.04.4mediumCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-732USCWE-732USCWE-732USCWE-732USCWE-732US
05

affected products (22)

Products and version ranges known to be affected.

showing 20 of 22
06

advisories (3)

Vendor and ecosystem advisories describing this.

  • NCSC-2025-0061Kwetsbaarheden verholpen in Siemens productenNL2025-02-14csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als APOGEE, Opcenter, RUGGEDCOM, SCALANCE, SIMATIC, SIPROTEC en Teamcenter.

  • SSA-369369SSA-369369: Weak Registry Permission Vulnerability in SIMATIC IPC DiagBase and SIMATIC IPC DiagMonitor2025-02-11csaf · siemens_psirtDE

    SIMATIC IPC DiagBase and SIMATIC IPC DiagMonitor contain a weak registry permission vulnerability that could allow an authenticated attacker to perform privilege escalation or bypass security measures. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

  • ICSA-25-044-12Siemens SIMATIC IPC DiagBase and SIMATIC IPC DiagMonitor2025-02-11icsa · cisa_csaf_otUS

    SIMATIC IPC DiagBase and SIMATIC IPC DiagMonitor contain a weak registry permission vulnerability that could allow an authenticated attacker to perform privilege escalation or bypass security measures. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

07

also known as (5)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otncsc_nlsiemens_psirtNVDCVE.orgMITRE
published 2025-02-11modified 2026-06-17
09

references (3)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan