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CVE-2025-40820

🗓️ 09 Dec 2025 10:44:30Reported by siemensType 
cve
 cve🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 6 Views

CVE-2025-40820 allows an unauthenticated remote attacker to spoof packets and disrupt Transmission Control Protocol setup, causing denial of service.

Related
Affected
Refs
Social
ReporterTitlePublishedViews
Family
Circl		CVE-2025-40820
9 Dec 202515:03
–circl
CNNVD		Siemens多款产品 安全漏洞
9 Dec 202500:00
–cnnvd
Cvelist		CVE-2025-40820
9 Dec 202510:44
–cvelist
EUVD		EUVD-2025-201923
9 Dec 202518:30
–euvd
ICS		Siemens Interniche IP-Stack
9 Dec 202500:00
–ics
NCSC		Vulnerabilities fixed in Siemens products
9 Dec 202513:15
–ncsc
NVD		CVE-2025-40820
9 Dec 202516:17
–nvd
Positive Technologies		PT-2025-49838
9 Dec 202500:00
–ptsecurity
RedhatCVE		CVE-2025-40820
10 Dec 202511:33
–redhatcve
Vulnrichment		CVE-2025-40820
9 Dec 202510:44
–vulnrichment
Rows per page
[
  {
    "vendor": "Siemens",
    "product": "SIDOOR ATD430W",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIDOOR ATE530G COATED",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIDOOR ATE530S COATED",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC CFU DIQ",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V2.0.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC CFU PA",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V2.0.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC CFU PA",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V2.0.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200AL IM 157-1 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200clean, CM 8x IO-Link",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200clean, DI 16x24VDC",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200clean, DIQ 16x24VDC/0,5A",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200eco PN, AI 8xRTD/TC, M12-L",
    "versions": [
      {
        "status": "affected",
        "version": "V5.1.1",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200eco PN, CM 4x IO-Link, M12-L",
    "versions": [
      {
        "status": "affected",
        "version": "V5.1.1",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200eco PN, CM 8x IO-Link, M12-L",
    "versions": [
      {
        "status": "affected",
        "version": "V5.1.1",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200eco PN, CM 8x IO-Link, M12-L",
    "versions": [
      {
        "status": "affected",
        "version": "V5.1.1",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200eco PN, DI 16x24VDC, M12-L",
    "versions": [
      {
        "status": "affected",
        "version": "V5.1.1",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200eco PN, DI 8x24VDC, M12-L",
    "versions": [
      {
        "status": "affected",
        "version": "V5.1.1",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200eco PN, DIQ 16x24VDC/2A, M12-L",
    "versions": [
      {
        "status": "affected",
        "version": "V5.1.1",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200eco PN, DQ 8x24VDC/0,5A, M12-L",
    "versions": [
      {
        "status": "affected",
        "version": "V5.1.1",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200eco PN, DQ 8x24VDC/2A, M12-L",
    "versions": [
      {
        "status": "affected",
        "version": "V5.1.1",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200MP IM 155-5 PN HF",
    "versions": [
      {
        "status": "affected",
        "version": "V4.2.0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200pro IM 154-8 PN/DP CPU",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200pro IM 154-8F PN/DP CPU",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200pro IM 154-8FX PN/DP CPU",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200S IM 151-8 PN/DP CPU",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200S IM 151-8F PN/DP CPU",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200SP CPU 1510SP F-1 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200SP CPU 1510SP-1 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200SP CPU 1512SP F-1 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200SP CPU 1512SP-1 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200SP IM 155-6 MF HF",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200SP IM 155-6 PN HA (incl. SIPLUS variants)",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V1.3",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200SP IM 155-6 PN HF",
    "versions": [
      {
        "status": "affected",
        "version": "V4.2.0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200SP IM 155-6 PN/2 HF",
    "versions": [
      {
        "status": "affected",
        "version": "V4.2.0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC ET 200SP IM 155-6 PN/3 HF",
    "versions": [
      {
        "status": "affected",
        "version": "V4.2.0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC PN/MF Coupler",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC PN/PN Coupler",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V6.0.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC Power Line Booster PLB, Base Module",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC Power Line Booster PLB, Modem Module ST",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1211C AC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1211C DC/DC/DC",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1211C DC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1212C AC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1212C DC/DC/DC",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1212C DC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1212FC DC/DC/DC",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1212FC DC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1214C AC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1214C DC/DC/DC",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1214C DC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1214FC DC/DC/DC",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1214FC DC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1215C AC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1215C DC/DC/DC",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1215C DC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1215FC DC/DC/DC",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1215FC DC/DC/Rly",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1200 CPU 1217C DC/DC/DC",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4.4.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1500 CPU 1511-1 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1500 CPU 1511F-1 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1500 CPU 1513-1 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1500 CPU 1513F-1 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1500 CPU 1515-2 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1500 CPU 1515F-2 PN",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1500 CPU 1516-3 PN/DP",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-1500 CPU 1516F-3 PN/DP",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-200 SMART CPU CR40",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-200 SMART CPU CR60",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-200 SMART CPU SR20",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-200 SMART CPU SR20",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "*",
        "versionType": "custom"
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]

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15 Apr 2026 00:35Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.17.5
CVSS 48.7
EPSS0.00104
SSVC
CWE-940
cve-2025-40820unauthenticatedremote attackerspoofed packetstransmission control protocolsequence number validationdenial of servicesetup disruption
6