{"schema_version":1,"title":"Siemens Simatic Cn 4100 Firmware vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 7 vulnerabilities in Siemens Simatic Cn 4100 Firmware: 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-22925, was published on 12 May 2026.","url":"https://junglewise.ai/threats/technologies/simatic-cn-4100-firmware","json_url":"https://junglewise.ai/threats/technologies/simatic-cn-4100-firmware.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/simatic-cn-4100-firmware","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":3,"all_time":7,"critical":1,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":7},"latest":[{"cve":"CVE-2026-22925","cvss":7.5,"epss":0.0032,"slug":"cve-2026-22925-siemens-simatic-cn-4100-resource-exhaustion-via-tcp-syn-flood","title":"Siemens SIMATIC CN 4100 resource exhaustion via TCP SYN flood","severity":"high","exploited":false,"published_at":"2026-05-12T10:16:44.057+00:00","url":"https://junglewise.ai/threats/cve-2026-22925-siemens-simatic-cn-4100-resource-exhaustion-via-tcp-syn-flood"},{"cve":"CVE-2026-22924","cvss":9.1,"epss":0.003,"slug":"cve-2026-22924-siemens-simatic-cn-4100-missing-authentication-and-resource","title":"Siemens SIMATIC CN 4100 missing authentication and resource exhaustion","severity":"critical","exploited":false,"published_at":"2026-05-12T10:16:43.917+00:00","url":"https://junglewise.ai/threats/cve-2026-22924-siemens-simatic-cn-4100-missing-authentication-and-resource"},{"cve":"CVE-2025-40941","cvss":4.3,"epss":0.0028,"slug":"cve-2025-40941-a-vulnerability-has-been-identified-in-simatic-cn-4100-all","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected devices exposes server…","severity":"medium","exploited":false,"published_at":"2025-12-09T16:17:47.997+00:00","url":"https://junglewise.ai/threats/cve-2025-40941-a-vulnerability-has-been-identified-in-simatic-cn-4100-all"},{"cve":"CVE-2025-40940","cvss":4.9,"epss":0.0037,"slug":"cve-2025-40940-a-vulnerability-has-been-identified-in-simatic-cn-4100-all","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application exhibits…","severity":"medium","exploited":false,"published_at":"2025-12-09T16:17:47.813+00:00","url":"https://junglewise.ai/threats/cve-2025-40940-a-vulnerability-has-been-identified-in-simatic-cn-4100-all"},{"cve":"CVE-2025-40939","cvss":4.6,"epss":0.0021,"slug":"cve-2025-40939-a-vulnerability-has-been-identified-in-simatic-cn-4100-all","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected device contains a USB…","severity":"medium","exploited":false,"published_at":"2025-12-09T16:17:47.617+00:00","url":"https://junglewise.ai/threats/cve-2025-40939-a-vulnerability-has-been-identified-in-simatic-cn-4100-all"},{"cve":"CVE-2025-40938","cvss":8.1,"epss":0.0038,"slug":"cve-2025-40938-a-vulnerability-has-been-identified-in-simatic-cn-4100-all","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected device stores sensitive…","severity":"high","exploited":false,"published_at":"2025-12-09T16:17:47.443+00:00","url":"https://junglewise.ai/threats/cve-2025-40938-a-vulnerability-has-been-identified-in-simatic-cn-4100-all"},{"cve":"CVE-2025-40937","cvss":8.3,"epss":0.0059,"slug":"cve-2025-40937-a-vulnerability-has-been-identified-in-simatic-cn-4100-all","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application do not…","severity":"high","exploited":false,"published_at":"2025-12-09T16:17:47.26+00:00","url":"https://junglewise.ai/threats/cve-2025-40937-a-vulnerability-has-been-identified-in-simatic-cn-4100-all"}],"weekly":[{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","slug":"simatic-s7-1500-cpu-1518-4-pn-dp-mfp","vulnerabilities":204,"url":"https://junglewise.ai/threats/technologies/simatic-s7-1500-cpu-1518-4-pn-dp-mfp"},{"name":"Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","slug":"simatic-s7-1500-cpu-1518f-4-pn-dp-mfp","vulnerabilities":83,"url":"https://junglewise.ai/threats/technologies/simatic-s7-1500-cpu-1518f-4-pn-dp-mfp"},{"name":"Siemens SIMATIC CN 4100","slug":"simatic-cn-4100","vulnerabilities":79,"url":"https://junglewise.ai/threats/technologies/simatic-cn-4100"},{"name":"Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","slug":"siplus-s7-1500-cpu-1518-4-pn-dp-mfp","vulnerabilities":70,"url":"https://junglewise.ai/threats/technologies/siplus-s7-1500-cpu-1518-4-pn-dp-mfp"},{"name":"Siemens RUGGEDCOM APE1808","slug":"ruggedcom-ape1808","vulnerabilities":28,"url":"https://junglewise.ai/threats/technologies/ruggedcom-ape1808"},{"name":"Siemens Ruggedcom Rox II","slug":"ruggedcom-rox-ii","vulnerabilities":16,"url":"https://junglewise.ai/threats/technologies/ruggedcom-rox-ii"},{"name":"Siemens RUGGEDCOM RST2428P","slug":"ruggedcom-rst2428p","vulnerabilities":16,"url":"https://junglewise.ai/threats/technologies/ruggedcom-rst2428p"},{"name":"Siemens ROX II","slug":"rox-ii","vulnerabilities":14,"url":"https://junglewise.ai/threats/technologies/rox-ii"},{"name":"Siemens RUGGEDCOM CROSSBOW","slug":"ruggedcom-crossbow","vulnerabilities":13,"url":"https://junglewise.ai/threats/technologies/ruggedcom-crossbow"},{"name":"Siemens SINEC OS","slug":"sinec-os","vulnerabilities":12,"url":"https://junglewise.ai/threats/technologies/sinec-os"},{"name":"Siemens Solid Edge","slug":"solid-edge","vulnerabilities":12,"url":"https://junglewise.ai/threats/technologies/solid-edge"},{"name":"Siemens SIMATIC Drive Controller CPU 1504D TF","slug":"simatic-drive-controller-cpu-1504d-tf","vulnerabilities":11,"url":"https://junglewise.ai/threats/technologies/simatic-drive-controller-cpu-1504d-tf"}],"technology":{"hub":true,"name":"Siemens Simatic Cn 4100 Firmware","slug":"simatic-cn-4100-firmware","vendor":{"hub":true,"name":"Siemens","slug":"siemens","url":"https://junglewise.ai/threats/vendors/siemens"},"aliases":[],"homepage":"https://support.industry.siemens.com/cs/products?pnid=25515","repo_url":"https://support.industry.siemens.com/","description":"Firmware for the SIMATIC CN 4100 communication processor used in industrial automation.","url":"https://junglewise.ai/threats/technologies/simatic-cn-4100-firmware"},"most_severe":[{"cve":"CVE-2026-22924","cvss":9.1,"epss":0.003,"slug":"cve-2026-22924-siemens-simatic-cn-4100-missing-authentication-and-resource","title":"Siemens SIMATIC CN 4100 missing authentication and resource exhaustion","severity":"critical","exploited":false,"published_at":"2026-05-12T10:16:43.917+00:00","url":"https://junglewise.ai/threats/cve-2026-22924-siemens-simatic-cn-4100-missing-authentication-and-resource"},{"cve":"CVE-2025-40937","cvss":8.3,"epss":0.0059,"slug":"cve-2025-40937-a-vulnerability-has-been-identified-in-simatic-cn-4100-all","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application do not…","severity":"high","exploited":false,"published_at":"2025-12-09T16:17:47.26+00:00","url":"https://junglewise.ai/threats/cve-2025-40937-a-vulnerability-has-been-identified-in-simatic-cn-4100-all"},{"cve":"CVE-2025-40938","cvss":8.1,"epss":0.0038,"slug":"cve-2025-40938-a-vulnerability-has-been-identified-in-simatic-cn-4100-all","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected device stores sensitive…","severity":"high","exploited":false,"published_at":"2025-12-09T16:17:47.443+00:00","url":"https://junglewise.ai/threats/cve-2025-40938-a-vulnerability-has-been-identified-in-simatic-cn-4100-all"},{"cve":"CVE-2026-22925","cvss":7.5,"epss":0.0032,"slug":"cve-2026-22925-siemens-simatic-cn-4100-resource-exhaustion-via-tcp-syn-flood","title":"Siemens SIMATIC CN 4100 resource exhaustion via TCP SYN flood","severity":"high","exploited":false,"published_at":"2026-05-12T10:16:44.057+00:00","url":"https://junglewise.ai/threats/cve-2026-22925-siemens-simatic-cn-4100-resource-exhaustion-via-tcp-syn-flood"},{"cve":"CVE-2025-40940","cvss":4.9,"epss":0.0037,"slug":"cve-2025-40940-a-vulnerability-has-been-identified-in-simatic-cn-4100-all","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application exhibits…","severity":"medium","exploited":false,"published_at":"2025-12-09T16:17:47.813+00:00","url":"https://junglewise.ai/threats/cve-2025-40940-a-vulnerability-has-been-identified-in-simatic-cn-4100-all"},{"cve":"CVE-2025-40939","cvss":4.6,"epss":0.0021,"slug":"cve-2025-40939-a-vulnerability-has-been-identified-in-simatic-cn-4100-all","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected device contains a USB…","severity":"medium","exploited":false,"published_at":"2025-12-09T16:17:47.617+00:00","url":"https://junglewise.ai/threats/cve-2025-40939-a-vulnerability-has-been-identified-in-simatic-cn-4100-all"},{"cve":"CVE-2025-40941","cvss":4.3,"epss":0.0028,"slug":"cve-2025-40941-a-vulnerability-has-been-identified-in-simatic-cn-4100-all","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected devices exposes server…","severity":"medium","exploited":false,"published_at":"2025-12-09T16:17:47.997+00:00","url":"https://junglewise.ai/threats/cve-2025-40941-a-vulnerability-has-been-identified-in-simatic-cn-4100-all"}],"generated_at":"2026-11-11T03:07:00.183524+00:00"}