CVE-2025-40576

mediumpriority · track · 0EPSS 0.003 · 20 %ileDEEUNLRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.28% (20th) EPSS

CVSS 4.3 · medium

Is it mine?

50 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 SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0 HF0). Affected devices do not properly validate incoming Profinet packets. An unauthenticated remote attacker can exploit this flaw by sending a specially crafted malicious packet, which leads to a crash of the dcpd process.

remediations

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

A vendor fix is available.

FixedSCALANCE LPE9403 (6GK5998-3GS00-2AC2)siemens_psirt
Update to V4.0 HF0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109989944/
FixedSCALANCE LPE9403 (6GK5998-3GS00-2AC2)cisa_csaf_ot
Update to V4.0 HF0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109989944/
MitigationSCALANCE LPE9403 (6GK5998-3GS00-2AC2)siemens_psirt
Disable the Profinet Discovery and Configuration Protocol (DCP) service
MitigationSCALANCE LPE9403 (6GK5998-3GS00-2AC2)cisa_csaf_ot
Disable the Profinet Discovery and Configuration Protocol (DCP) service

cvss

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

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–5.3

v3.14.3mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · NCSC-NL NL

v3.14.3mediumAV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · FSTEC (BDU) RU

v3.14.3mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · productcert@siemens.com DEexploitability 2.8 · impact 1.4

v3.14.3mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · Siemens ProductCERT DE

v3.14.3mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · CISA US

v4.05.3mediumCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.05.3mediumCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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

v4.01.3lowCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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)

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476USCWE-476USCWE-476USCWE-476USCWE-476US

affected products (50)

Products and version ranges known to be affected.

SCALANCE LPE9403 (6GK5998-3GS00-2AC2) < V4.0.0all versionscisa_csaf_otUS
Siemens SCALANCE LPE9403 (6GK5998-3GS00-2AC2)≤ vers:intdot/<4.0.0cisa_csaf_otUS
Siemens SCALANCE LPE94030 → *enisa_euvdEU
Siemens SCALANCE LPE94030 → V4.0 HF0enisa_euvdEU
Siemens AG SCALANCE LPE9403all versionsfstec_bduRU
Siemens CPCI85 Central Processing/Communication≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC ClickOnce Client V6≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC ClickOnce Client V7≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC Flex Client V6≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC Flex Client V7≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC Installed Client V6≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC Installed Client V7≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC family V5.0≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC family V5.1≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC family V6≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC family V7≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC family V8≤ vers:unknown/*ncsc_nlNL
Siemens Desigo CC family V9≤ vers:unknown/*ncsc_nlNL
Siemens Industrial Edge Management≤ vers:unknown/*ncsc_nlNL
Siemens Reyrolle 7SR5≤ vers:unknown/*ncsc_nlNL

showing 20 of 50

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2026-0346Kwetsbaarheden verholpen in Siemens productenNL2026-09-08csaf · ncsc_nlNL
Siemens heeft kwetsbaarheden verholpen in diverse producten als Desigo, Reyrolle, SIMATIC, SCALANCE, SINAMICS en Siveillance.
SSA-327438SSA-327438: Multiple Vulnerabilities in SCALANCE LPE94032025-05-13csaf · siemens_psirtDE
SCALANCE LPE9403 is affected by multiple vulnerabilities which lead to a compromise in availability, integrity and confidentiality. Siemens has released a new version for SCALANCE LPE9403 and recommends to update to the latest version. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.
ICSA-25-135-18Siemens SCALANCE LPE94032025-05-13icsa · cisa_csaf_otUS
SCALANCE LPE9403 is affected by multiple vulnerabilities which lead to a compromise in availability, integrity and confidentiality. Siemens has released a new version for SCALANCE LPE9403 and recommends to update to the latest version. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot ncsc_nl siemens_psirt NVD CVE.org MITRE

published 2025-05-13modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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