{"id":35242,"date":"2026-01-13T05:10:30","date_gmt":"2026-01-13T05:10:30","guid":{"rendered":"http:\/\/localhost\/?p=35242"},"modified":"2026-01-13T05:10:30","modified_gmt":"2026-01-13T05:10:30","slug":"cve-2025-40944","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=35242","title":{"rendered":"CVE-2025-40944_CVE-2025-40944"},"content":{"rendered":"

{“lastseen”:””,”description”:”A vulnerability has been identified in SIMATIC ET 200AL IM 157-1 PN (6ES7157-1AB00-0AB0) (All versions), SIMATIC ET 200MP IM 155-5 PN HF (6ES7155-5AA00-0AC0) (All versions \\u003e= V4.2.0), SIMATIC ET 200SP IM 155-6 MF HF (6ES7155-6MU00-0CN0) (All versions), SIMATIC ET 200SP IM 155-6 PN HA (incl. SIPLUS variants) (All versions \\u003c V1.3), SIMATIC ET 200SP IM 155-6 PN R1 (6ES7155-6AU00-0HM0) (All versions \\u003c V6.0.1), SIMATIC ET 200SP IM 155-6 PN\/2 HF (6ES7155-6AU01-0CN0) (All versions \\u003e= V4.2.0), SIMATIC ET 200SP IM 155-6 PN\/3 HF (6ES7155-6AU30-0CN0) (All versions \\u003c V4.2.2), SIMATIC PN\/MF Coupler (6ES7158-3MU10-0XA0) (All versions), SIMATIC PN\/PN Coupler (6ES7158-3AD10-0XA0) (All versions \\u003c V6.0.0), SIPLUS ET 200MP IM 155-5 PN HF (6AG1155-5AA00-2AC0) (All versions \\u003e= V4.2.0), SIPLUS ET 200MP IM 155-5 PN HF (6AG1155-5AA00-7AC0) (All versions \\u003e= V4.2.0), SIPLUS ET 200MP IM 155-5 PN HF T1 RAIL (6AG2155-5AA00-1AC0) (All versions \\u003e= V4.2.0), SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU01-2CN0) (All versions \\u003e= V4.2.0), SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU01-7CN0) (All versions \\u003e= V4.2.0), SIPLUS ET 200SP IM 155-6 PN HF T1 RAIL (6AG2155-6AU01-1CN0) (All versions \\u003e= V4.2.0), SIPLUS ET 200SP IM 155-6 PN HF TX RAIL (6AG2155-6AU01-4CN0) (All versions \\u003e= V4.2.0), SIPLUS NET PN\/PN Coupler (6AG2158-3AD10-4XA0) (All versions \\u003c V6.0.0). Affected devices do not properly handle S7 protocol session disconnect requests. When receiving a valid S7 protocol Disconnect Request (COTP DR TPDU) on TCP port 102, the devices enter an improper session state.\\r\\n\\r\\nThis could allow an attacker to cause the device to become unresponsive, leading to a denial-of-service condition that requires a power cycle to restore normal operation.”,”published”:”2026-01-13T09:44:05.792Z”,”modified”:”2026-01-13T09:44:05.792Z”,”type”:”cve”,”title”:”CVE-2025-40944″,”source”:”siemens”,”references”:”https:\/\/cert-portal.siemens.com\/productcert\/html\/ssa-674753.html”,”id”:”CVE-2025-40944″,”bulletinFamily”:””,”cwe”:[“CWE-400″],”cvelist”:null,”sourceData”:”Siemens SIMATIC ET 200AL IM 157-1 PN 0\\nSiemens SIMATIC ET 200MP IM 155-5 PN HF V4.2.0\\nSiemens SIMATIC ET 200SP IM 155-6 MF HF 0\\nSiemens SIMATIC ET 200SP IM 155-6 PN HA (incl. SIPLUS variants) 0\\nSiemens SIMATIC ET 200SP IM 155-6 PN R1 0\\nSiemens SIMATIC ET 200SP IM 155-6 PN\/2 HF V4.2.0\\nSiemens SIMATIC ET 200SP IM 155-6 PN\/3 HF 0\\nSiemens SIMATIC PN\/MF Coupler 0\\nSiemens SIMATIC PN\/PN Coupler 0\\nSiemens SIPLUS ET 200MP IM 155-5 PN HF V4.2.0\\nSiemens SIPLUS ET 200MP IM 155-5 PN HF V4.2.0\\nSiemens SIPLUS ET 200MP IM 155-5 PN HF T1 RAIL V4.2.0\\nSiemens SIPLUS ET 200SP IM 155-6 PN HF V4.2.0\\nSiemens SIPLUS ET 200SP IM 155-6 PN HF V4.2.0\\nSiemens SIPLUS ET 200SP IM 155-6 PN HF T1 RAIL V4.2.0\\nSiemens SIPLUS ET 200SP IM 155-6 PN HF TX RAIL V4.2.0\\nSiemens SIPLUS NET PN\/PN Coupler 0″,”sourceHref”:””,”cvss”:{“score”:7.5,”severity”:”HIGH”,”vector”:”CVSS:3.1\/AV:N\/AC:L\/PR:N\/UI:N\/S:U\/C:N\/I:N\/A:H”,”version”:”3.1″},”cvss2″:{},”cvss3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””,”cvssV3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””}},”href”:””,”category_name”:”CVE”,”post_link”:””,”product”:”SIMATIC ET 200AL IM 157-1 PN”,”version”:”0″,”vendor”:”Siemens”,”ai_description”:””,”ai_severity”:””,”ai_vendor”:””,”ai_product”:””,”ai_version”:””,”ai_score”:0}<\/p>\n","protected":false},"excerpt":{"rendered":"

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