CVE-2024-43647

highpriority · track · 0EPSS 0.006 · 46 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.56% (46th) EPSS
CVSS 7.5 · high
Is it mine?
75 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A vulnerability has been identified in SIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1) (All versions). Affected devices do not properly handle TCP packets with an incorrect structure. This could allow an unauthenticated remote attacker to cause a denial of service condition. To restore normal operations, the network cable of the device needs to be unplugged and re-plugged.

01

remediations

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

No vendor fix yet; a mitigation is available.

  • MitigationSIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1)siemens_psirt

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • MitigationSIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1)cisa_csaf_ot

    Limit network access to trusted users and systems only

  • No fix plannedSIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1)siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0)cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1)cisa_csaf_ot

    Currently no fix is planned

02

cvss

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

8.7
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · productcert@siemens.com DEexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:T/RC:Csecondary · Siemens ProductCERT DE
v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:T/RC:Csecondary · CISA US
v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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
v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.06.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USCWE-400USCWE-400USCWE-400US
05

affected products (75)

Products and version ranges known to be affected.

showing 20 of 75
06

advisories (3)

Vendor and ecosystem advisories describing this.

  • SSA-969738SSA-969738: Denial of Service Vulnerability in SIMATIC S7-200 SMART Devices2024-09-10csaf · siemens_psirtDE

    A vulnerability in SIMATIC S7-200 SMART devices could allow an attacker to cause a denial of service condition if a specially crafted TCP packet is sent to the device. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

  • WID-SEC-W-2024-2095Siemens SIMATIC S7: Schwachstelle ermöglicht Denial of ServiceDeutsch2024-09-09csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Siemens SIMATIC S7 ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • ICSA-24-261-01Siemens SIMATIC S7-200 SMART Devices2024-09-10icsa · cisa_csaf_otUS

    A vulnerability in SIMATIC S7-200 SMART devices could allow an attacker to cause a denial of service condition if a specially crafted TCP packet is sent to the device. 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_bducert_bundcisa_csaf_otsiemens_psirtNVDCVE.orgMITRE
published 2024-09-10modified 2026-06-17
09

references (4)

External citations — patches, advisories, analysis.

scry

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