{"id":"CVE-2021-40368","state":"PUBLISHED","title":"A vulnerability has been identified in  SIMATIC S7-400 CPU 412-1 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versi","description":"A vulnerability has been identified in  SIMATIC S7-400 CPU 412-1 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 414-2 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 416-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 416F-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions < V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions < V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.\n\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.","publishedAt":"2022-04-12T09:07:23.000Z","updatedAt":"2025-04-21T13:54:27.056Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C","source":"siemens"},"assigner":"siemens","products":["Siemens  SIMATIC S7-400 CPU 412-1 DP V7","Siemens  SIMATIC S7-400 CPU 412-2 DP V7","Siemens  SIMATIC S7-400 CPU 412-2 PN/DP V7","Siemens  SIMATIC S7-400 CPU 414-2 DP V7","Siemens  SIMATIC S7-400 CPU 414-3 DP V7","Siemens  SIMATIC S7-400 CPU 414-3 PN/DP V7","Siemens  SIMATIC S7-400 CPU 414F-3 PN/DP V7","Siemens  SIMATIC S7-400 CPU 416-2 DP V7","Siemens  SIMATIC S7-400 CPU 416-3 DP V7","Siemens  SIMATIC S7-400 CPU 416-3 PN/DP V7","Siemens  SIMATIC S7-400 CPU 416F-2 DP V7","Siemens  SIMATIC S7-400 CPU 416F-3 PN/DP V7","Siemens  SIMATIC S7-400 CPU 417-4 DP V7","Siemens SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)","Siemens SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)","Siemens SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)","Siemens SIPLUS S7-400 CPU 414-3 PN/DP V7","Siemens SIPLUS S7-400 CPU 416-3 PN/DP V7","Siemens SIPLUS S7-400 CPU 416-3 V7","Siemens SIPLUS S7-400 CPU 417-4 V7"],"affected":[{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 412-1 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 412-2 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 412-2 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 414-2 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 414-3 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 414-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 414F-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 416-2 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 416-3 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 416-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 416F-2 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 416F-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 417-4 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions < V6.0.10","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions < V10.1","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions < V8.2.3","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS S7-400 CPU 414-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS S7-400 CPU 416-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS S7-400 CPU 416-3 V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS S7-400 CPU 417-4 V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]}],"references":["https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf"],"weaknesses":["CWE-119"],"ingestedAt":"2026-10-29T19:48:58.929Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/40xxx/CVE-2021-40368.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-40368","state":"PUBLISHED","datePublished":"2022-04-12T09:07:23.000Z","dateUpdated":"2025-04-21T13:54:27.056Z","assignerShortName":"siemens","assignerOrgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","dateReserved":"2021-09-01T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability has been identified in  SIMATIC S7-400 CPU 412-1 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 414-2 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 416-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 416F-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions < V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions < V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.\n\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations."}],"affected":[{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 412-1 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 412-2 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 412-2 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 414-2 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 414-3 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 414-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 414F-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 416-2 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 416-3 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 416-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 416F-2 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 416F-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":" SIMATIC S7-400 CPU 417-4 DP V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions < V6.0.10","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions < V10.1","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions < V8.2.3","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS S7-400 CPU 414-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS S7-400 CPU 416-3 PN/DP V7","defaultStatus":"unknown","versions":[{"version":"All versions < V7.0.3","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS S7-400 CPU 416-3 V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS S7-400 CPU 417-4 V7","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-119","lang":"en","description":"CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer","type":"CWE"}]}],"providerMetadata":{"shortName":"siemens","orgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","dateUpdated":"2023-04-11T09:02:03.176Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T02:44:09.608Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-18T15:12:26.532560Z","id":"CVE-2021-40368","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-21T13:54:27.056Z"}}]}}}