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Vulnerability record · CVE-2017-2681 · published 11 May 2017

CVE-2017-2681: Siemens simatic cp 343-1 std firmware uncontrolled resource consumption vulnerability

Siemens · Simatic Cp 343 1 Std Firmware

Specially crafted PROFINET DCP packets sent on a local Ethernet segment (Layer 2) to an affected product could cause a denial of service condition of that product. Human interaction is required to recover the system. PROFIBUS interfaces are not affected.

7.1 CVSS 4.0 High EPSS 0.91% · top 41.7% CWE-400 · Uncontrolled resource consumption
7.1CVSS 4.0 base score, v2 6.1
0.91%EPSS exploitation probability, 30 days
NoNot in CISA KEV
79Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

Specially crafted PROFINET DCP packets sent on a local Ethernet segment (Layer 2) to an affected product could cause a denial of service condition of that product. Human interaction is required to recover the system. PROFIBUS interfaces are not affected.

CVSS:4.0/AV:A/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:

Affected products

79 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/98369 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038463 Third Party AdvisoryVDB Entry
https://cert-portal.siemens.com/productcert/html/ssa-293562.html
https://cert-portal.siemens.com/productcert/pdf/ssa-293562.pdf Vendor Advisory
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-293562.pdf Broken Link
http://www.securityfocus.com/bid/98369 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038463 Third Party AdvisoryVDB Entry
https://cert-portal.siemens.com/productcert/html/ssa-293562.html
https://cert-portal.siemens.com/productcert/pdf/ssa-293562.pdf Vendor Advisory
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-293562.pdf Broken Link

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-2681), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.