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Vulnerability record · CVE-2017-12741 · published 26 December 2017

CVE-2017-12741: Siemens simatic s7-200 firmware uncontrolled resource consumption vulnerability

Siemens · Simatic S7 200 Firmware

Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affected devices must be restarted manually.

8.7 CVSS 4.0 High EPSS 3.3% · top 11.9% CWE-400 · Uncontrolled resource consumption
8.7CVSS 4.0 base score, v2 7.8
3.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
38Affected product versions listed by NVD
14References
17 Jun 2026Last modified by NVD

Description

Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affected devices must be restarted manually.

CVSS: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:

Affected products

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

References

LinkTags
https://cert-portal.siemens.com/productcert/html/ssa-141614.html
https://cert-portal.siemens.com/productcert/html/ssa-346262.html
https://cert-portal.siemens.com/productcert/html/ssa-546832.html
https://cert-portal.siemens.com/productcert/pdf/ssa-141614.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-346262.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-546832.pdf
https://www.securityfocus.com/bid/101964
https://cert-portal.siemens.com/productcert/html/ssa-141614.html
https://cert-portal.siemens.com/productcert/html/ssa-346262.html
https://cert-portal.siemens.com/productcert/html/ssa-546832.html
https://cert-portal.siemens.com/productcert/pdf/ssa-141614.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-346262.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-546832.pdf
https://www.securityfocus.com/bid/101964

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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-2017-12741), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.