CVE-2024-56336

criticalpriority · track · 0EPSS 0.006 · 46 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.55% (46th) EPSS

CVSS 9.8 · critical

Is it mine?

110 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 SINAMICS S200 (All versions with serial number beginning with SZVS8, SZVS9, SZVS0 or SZVSN and the FS number is 02). The affected device contains an unlocked bootloader. This security oversight enables attackers to inject malicious code, or install untrusted firmware. The intrinsic security features designed to protect against data manipulation and unauthorized access are compromised when the bootloader is not secured.

remediations

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

A vendor fix is available.

FixedSINAMICS S200siemens_psirt
Contact your local customer service for further support
FixedSINAMICS S200cisa_csaf_ot
Contact your local customer service for further support

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.4–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · productcert@siemens.com DEexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Siemens ProductCERT DE

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v4.09.5criticalCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:Hsecondary · ENISA EU

v4.09.5criticalCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

v4.08.4highCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USCWE-287USCWE-287USCWE-287USCWE-287US

affected products (110)

Products and version ranges known to be affected.

SINAMICS S200all versionscisa_csaf_otUS
Siemens SINAMICS S200≤ vers:all/*cisa_csaf_otUS
Siemens SINAMICS S2000 → *enisa_euvdEU
Siemens AG SINAMICS S200all versionsfstec_bduRU
Siemens RUGGEDCOM RM1224 LTE(4G) EU≤ vers:unknown/<v8.2.1ncsc_nlNL
Siemens RUGGEDCOM RM1224 LTE(4G) EU (6GK6108-4AM00-2BA2)≤ vers:all/<v8.2ncsc_nlNL
Siemens RUGGEDCOM RM1224 LTE(4G) NAM≤ vers:unknown/<v8.2.1ncsc_nlNL
Siemens RUGGEDCOM RM1224 LTE(4G) NAM (6GK6108-4AM00-2DA2)≤ vers:all/<v8.2ncsc_nlNL
Siemens SCALANCE LPE9403≤ vers:unknown/<v4.0ncsc_nlNL
Siemens SCALANCE LPE9403≤ vers:unknown/3.xncsc_nlNL
Siemens SCALANCE M804PB≤ vers:unknown/<v8.2.1ncsc_nlNL
Siemens SCALANCE M804PB (6GK5804-0AP00-2AA2)≤ vers:all/<v8.2ncsc_nlNL
Siemens SCALANCE M812-1 ADSL-Router (6GK5812-1AA00-2AA2)≤ vers:all/<v8.2ncsc_nlNL
Siemens SCALANCE M812-1 ADSL-Router (6GK5812-1BA00-2AA2)≤ vers:all/<v8.2ncsc_nlNL
Siemens SCALANCE M812-1 ADSL-Router family≤ vers:unknown/<v8.2.1ncsc_nlNL
Siemens SCALANCE M816-1 ADSL-Router (6GK5816-1AA00-2AA2)≤ vers:all/<v8.2ncsc_nlNL
Siemens SCALANCE M816-1 ADSL-Router (6GK5816-1BA00-2AA2)≤ vers:all/<v8.2ncsc_nlNL
Siemens SCALANCE M816-1 ADSL-Router family≤ vers:unknown/<v8.2.1ncsc_nlNL
Siemens SCALANCE M826-2 SHDSL-Router≤ vers:unknown/<v8.2.1ncsc_nlNL
Siemens SCALANCE M826-2 SHDSL-Router (6GK5826-2AB00-2AB2)≤ vers:all/<v8.2ncsc_nlNL

showing 20 of 110

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2025-0077Kwetsbaarheden verholpen in Siemens productenNL2025-03-11csaf · ncsc_nlNL
Siemens heeft kwetsbaarheden verholpen in diverse producten als SCALANCE, SIMATIC, SINAMICS, SINEMA, SiPass, Teamcenter en Tecnomatix.
SSA-787280SSA-787280: Unlocked Bootloader Vulnerability in SINAMICS S2002025-03-11csaf · siemens_psirtDE
A specific range of produced SINAMICS S200 devices contains an unlocked bootloader vulnerability that could allow an attacker to download untrusted firmware that could damage or compromise the device. For delivered products listed below Siemens recommends countermeasures.
ICSA-25-072-05Siemens SINAMICS S2002025-03-11icsa · cisa_csaf_otUS
A specific range of produced SINAMICS S200 devices contains an unlocked bootloader vulnerability that could allow an attacker to download untrusted firmware that could damage or compromise the device. For delivered products listed below Siemens recommends countermeasures.

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 2025-03-11modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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