CVE-2025-40820_CVE-2025-40820

{
    "lastseen": "",
    "description": "Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values within a broad range. This could allow an unauthenticated remote attacker e.g. to interfere with connection setup, potentially leading to a denial of service. The attack succeeds only if an attacker can inject IP packets with spoofed addresses at precisely timed moments, and it affects only TCP-based services.",
    "published": "2025-12-09T10:44:30.977Z",
    "modified": "2025-12-09T10:44:30.977Z",
    "type": "cve",
    "title": "CVE-2025-40820",
    "source": "siemens",
    "references": "https://cert-portal.siemens.com/productcert/html/ssa-915282.html",
    "id": "CVE-2025-40820",
    "bulletinFamily": "",
    "cwe": [
        "CWE-940"
    ],
    "cvelist": null,
    "sourceData": "Siemens SIDOOR ATD430W 0\nSiemens SIDOOR ATE530G COATED 0\nSiemens SIDOOR ATE530S COATED 0\nSiemens SIMATIC CFU DIQ 0\nSiemens SIMATIC CFU PA 0\nSiemens SIMATIC CFU PA 0\nSiemens SIMATIC ET 200AL IM 157-1 PN 0\nSiemens SIMATIC ET 200clean, CM 8x IO-Link 0\nSiemens SIMATIC ET 200clean, DI 16x24VDC 0\nSiemens SIMATIC ET 200clean, DIQ 16x24VDC/0,5A 0\nSiemens SIMATIC ET 200eco PN, AI 8xRTD/TC, M12-L V5.1.1\nSiemens SIMATIC ET 200eco PN, CM 4x IO-Link, M12-L V5.1.1\nSiemens SIMATIC ET 200eco PN, CM 8x IO-Link, M12-L V5.1.1\nSiemens SIMATIC ET 200eco PN, CM 8x IO-Link, M12-L V5.1.1\nSiemens SIMATIC ET 200eco PN, DI 16x24VDC, M12-L V5.1.1\nSiemens SIMATIC ET 200eco PN, DI 8x24VDC, M12-L V5.1.1\nSiemens SIMATIC ET 200eco PN, DIQ 16x24VDC/2A, M12-L V5.1.1\nSiemens SIMATIC ET 200eco PN, DQ 8x24VDC/0,5A, M12-L V5.1.1\nSiemens SIMATIC ET 200eco PN, DQ 8x24VDC/2A, M12-L V5.1.1\nSiemens SIMATIC ET 200MP IM 155-5 PN HF V4.2.0\nSiemens SIMATIC ET 200pro IM 154-8 PN/DP CPU 0\nSiemens SIMATIC ET 200pro IM 154-8F PN/DP CPU 0\nSiemens SIMATIC ET 200pro IM 154-8FX PN/DP CPU 0\nSiemens SIMATIC ET 200S IM 151-8 PN/DP CPU 0\nSiemens SIMATIC ET 200S IM 151-8F PN/DP CPU 0\nSiemens SIMATIC ET 200SP CPU 1510SP F-1 PN 0\nSiemens SIMATIC ET 200SP CPU 1510SP-1 PN 0\nSiemens SIMATIC ET 200SP CPU 1512SP F-1 PN 0\nSiemens SIMATIC ET 200SP CPU 1512SP-1 PN 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 HF V4.2.0\nSiemens SIMATIC ET 200SP IM 155-6 PN/2 HF V4.2.0\nSiemens SIMATIC ET 200SP IM 155-6 PN/3 HF V4.2.0\nSiemens SIMATIC PN/MF Coupler 0\nSiemens SIMATIC PN/PN Coupler 0\nSiemens SIMATIC Power Line Booster PLB, Base Module 0\nSiemens SIMATIC Power Line Booster PLB, Modem Module ST 0\nSiemens SIMATIC S7-1200 CPU 1211C AC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1211C DC/DC/DC 0\nSiemens SIMATIC S7-1200 CPU 1211C DC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1212C AC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1212C DC/DC/DC 0\nSiemens SIMATIC S7-1200 CPU 1212C DC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1212FC DC/DC/DC 0\nSiemens SIMATIC S7-1200 CPU 1212FC DC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1214C AC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1214C DC/DC/DC 0\nSiemens SIMATIC S7-1200 CPU 1214C DC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1214FC DC/DC/DC 0\nSiemens SIMATIC S7-1200 CPU 1214FC DC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1215C AC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1215C DC/DC/DC 0\nSiemens SIMATIC S7-1200 CPU 1215C DC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1215FC DC/DC/DC 0\nSiemens SIMATIC S7-1200 CPU 1215FC DC/DC/Rly 0\nSiemens SIMATIC S7-1200 CPU 1217C DC/DC/DC 0\nSiemens SIMATIC S7-1500 CPU 1511-1 PN 0\nSiemens SIMATIC S7-1500 CPU 1511F-1 PN 0\nSiemens SIMATIC S7-1500 CPU 1513-1 PN 0\nSiemens SIMATIC S7-1500 CPU 1513F-1 PN 0\nSiemens SIMATIC S7-1500 CPU 1515-2 PN 0\nSiemens SIMATIC S7-1500 CPU 1515F-2 PN 0\nSiemens SIMATIC S7-1500 CPU 1516-3 PN/DP 0\nSiemens SIMATIC S7-1500 CPU 1516F-3 PN/DP 0\nSiemens SIMATIC S7-200 SMART CPU CR40 0\nSiemens SIMATIC S7-200 SMART CPU CR60 0\nSiemens SIMATIC S7-200 SMART CPU SR20 0\nSiemens SIMATIC S7-200 SMART CPU SR20 0\nSiemens SIMATIC S7-200 SMART CPU SR30 0\nSiemens SIMATIC S7-200 SMART CPU SR30 0\nSiemens SIMATIC S7-200 SMART CPU SR40 0\nSiemens SIMATIC S7-200 SMART CPU SR40 0\nSiemens SIMATIC S7-200 SMART CPU SR60 0\nSiemens SIMATIC S7-200 SMART CPU SR60 0\nSiemens SIMATIC S7-200 SMART CPU ST20 0\nSiemens SIMATIC S7-200 SMART CPU ST20 0\nSiemens SIMATIC S7-200 SMART CPU ST30 0\nSiemens SIMATIC S7-200 SMART CPU ST30 0\nSiemens SIMATIC S7-200 SMART CPU ST40 0\nSiemens SIMATIC S7-200 SMART CPU ST40 0\nSiemens SIMATIC S7-200 SMART CPU ST60 0\nSiemens SIMATIC S7-200 SMART CPU ST60 0\nSiemens SIMATIC S7-300 CPU 314C-2 PN/DP 0\nSiemens SIMATIC S7-300 CPU 315-2 PN/DP 0\nSiemens SIMATIC S7-300 CPU 315F-2 PN/DP 0\nSiemens SIMATIC S7-300 CPU 315T-3 PN/DP 0\nSiemens SIMATIC S7-300 CPU 317-2 PN/DP 0\nSiemens SIMATIC S7-300 CPU 317F-2 PN/DP 0\nSiemens SIMATIC S7-300 CPU 317T-3 PN/DP 0\nSiemens SIMATIC S7-300 CPU 317TF-3 PN/DP 0\nSiemens SIMATIC S7-300 CPU 319-3 PN/DP 0\nSiemens SIMATIC S7-300 CPU 319F-3 PN/DP 0\nSiemens SIMATIC S7-400 CPU 412-2 PN V7 0\nSiemens SIMATIC S7-400 CPU 414-3 PN/DP V7 0\nSiemens SIMATIC S7-400 CPU 414F-3 PN/DP V7 0\nSiemens SIMATIC S7-400 CPU 416-3 PN/DP V7 0\nSiemens SIMATIC S7-400 CPU 416F-3 PN/DP V7 0\nSiemens SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) 0\nSiemens SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) 0\nSiemens SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) 0\nSiemens SIMATIC TDC CP51M1 0\nSiemens SIMATIC TDC CPU555 0\nSiemens SIMOCODE pro V Ethernet/IP (incl. SIPLUS variants) 0\nSiemens SIMOCODE pro V PROFINET 0\nSiemens SINUMERIK 840D sl 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 200S IM 151-8 PN/DP CPU 0\nSiemens SIPLUS ET 200S IM 151-8F PN/DP CPU 0\nSiemens SIPLUS ET 200SP CPU 1512SP F-1 PN 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 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 T1 RAIL V4.2.0\nSiemens SIPLUS ET 200SP IM 155-6 PN HF TX RAIL V4.2.0\nSiemens SIPLUS HCS4200 CIM4210 0\nSiemens SIPLUS HCS4200 CIM4210C 0\nSiemens SIPLUS HCS4300 CIM4310 0\nSiemens SIPLUS NET PN/PN Coupler 0\nSiemens SIPLUS S7-1200 CPU 1212 AC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1212 DC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1212 DC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1212C AC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1212C DC/DC/DC 0\nSiemens SIPLUS S7-1200 CPU 1212C DC/DC/DC 0\nSiemens SIPLUS S7-1200 CPU 1212C DC/DC/DC RAIL 0\nSiemens SIPLUS S7-1200 CPU 1214 AC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1214 DC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1214C AC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1214C AC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1214C DC/DC/DC 0\nSiemens SIPLUS S7-1200 CPU 1214C DC/DC/DC 0\nSiemens SIPLUS S7-1200 CPU 1214C DC/DC/DC 0\nSiemens SIPLUS S7-1200 CPU 1214C DC/DC/DC RAIL 0\nSiemens SIPLUS S7-1200 CPU 1214C DC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1214C DC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1214FC DC/DC/DC 0\nSiemens SIPLUS S7-1200 CPU 1214FC DC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1215 AC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1215 AC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1215 DC/DC/DC 0\nSiemens SIPLUS S7-1200 CPU 1215 DC/DC/DC 0\nSiemens SIPLUS S7-1200 CPU 1215 DC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1215 DC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1215 DC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1215C AC/DC/RLY 0\nSiemens SIPLUS S7-1200 CPU 1215C DC/DC/DC 0\nSiemens SIPLUS S7-1200 CPU 1215FC DC/DC/DC 0\nSiemens SIPLUS S7-1500 CPU 1511-1 PN 0\nSiemens SIPLUS S7-1500 CPU 1511F-1 PN 0\nSiemens SIPLUS S7-1500 CPU 1513-1 PN 0\nSiemens SIPLUS S7-1500 CPU 1513F-1 PN 0\nSiemens SIPLUS S7-1500 CPU 1516-3 PN/DP 0\nSiemens SIPLUS S7-1500 CPU 1516-3 PN/DP 0\nSiemens SIPLUS S7-1500 CPU 1516F-3 PN/DP 0\nSiemens SIPLUS S7-300 CPU 314C-2 PN/DP 0\nSiemens SIPLUS S7-300 CPU 315-2 PN/DP 0\nSiemens SIPLUS S7-300 CPU 315F-2 PN/DP 0\nSiemens SIPLUS S7-300 CPU 317-2 PN/DP 0\nSiemens SIPLUS S7-300 CPU 317F-2 PN/DP 0\nSiemens SIPLUS S7-400 CPU 414-3 PN/DP V7 0\nSiemens SIPLUS S7-400 CPU 416-3 PN/DP V7 0\nSiemens SIWAREX WP231 0\nSiemens SIWAREX WP241 0\nSiemens SIWAREX WP251 0\nSiemens SIWAREX WP521 ST 0\nSiemens SIWAREX WP522 ST 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": "SIDOOR ATD430W",
    "version": "0",
    "vendor": "Siemens",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}