{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2018-4843",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2018-4843",
    "idYear": 2018,
    "status": "PUBLISHED",
    "publishedAt": "2018-03-20T14:00:00.000Z",
    "updatedAt": "2024-08-05T05:18:26.626Z",
    "importedAt": "2026-10-24T01:56:04.670Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": null,
      "summary": "A vulnerability has been identified in  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 416-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIMATIC ET 200pro IM154-8 PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200pro IM154-8F PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200pro IM154-8FX PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200S IM151-8 PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200S IM151-8F PN/DP CPU (All versions < V3.2.16), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V1.7.0), SIMATIC S7-1500 Software Controller (All versions < V1.7.0), SIMATIC S7-300 CPU 314C-2 PN/DP (All versions < V3.3.16), SIMATIC S7-300 CPU 315-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 315F-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 315T-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317F-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317T-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317TF-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 319-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 319F-3 PN/DP (All versions < V3.2.16), SIMATIC S7-400 CPU 412-2 PN V7 (All versions < V7.0.3), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.9), SIMATIC S7-400 PN/DP V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.7), SIMATIC S7-410 CPU family (incl. SIPLUS variants) (All versions < V8.1), SIMATIC WinAC RTX 2010 (All versions < V2010 SP3), SIMATIC WinAC RTX F 2010 (All versions < V2010 SP3), SINUMERIK 828D (All versions < V4.7 SP6 HF1), SIPLUS ET 200S IM151-8 PN/DP CPU (All versions < V3.2.16), SIPLUS ET 200S IM151-8F PN/DP CPU (All versions < V3.2.16), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3), SIPLUS S7-300 CPU 314C-2 PN/DP (All versions < V3.3.16), SIPLUS S7-300 CPU 315-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 315F-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 317-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 317F-2 PN/DP (All versions < V3.2.16), 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), Softnet PROFINET IO for PC-based Windows systems (All versions). Responding to a PROFINET DCP request with a specially crafted PROFINET DCP packet could cause a denial of service condition of the requesting system.\r\n\r\nThe security vulnerability could be exploited by an attacker located on the same Ethernet segment (OSI Layer 2) as the targeted device. A manual restart is required to recover the system.",
      "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 416-3 PN/DP V7",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V7.0.3",
              "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 CP 343-1 (incl. SIPLUS variants)",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC CP 343-1 Advanced (incl. SIPLUS variants)",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC CP 443-1",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC CP 443-1",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC CP 443-1 Advanced",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC ET 200pro IM154-8 PN/DP CPU",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC ET 200pro IM154-8F PN/DP CPU",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC ET 200pro IM154-8FX PN/DP CPU",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC ET 200S IM151-8 PN/DP CPU",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC ET 200S IM151-8F PN/DP CPU",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V1.7.0",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-1500 Software Controller",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V1.7.0",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-300 CPU 314C-2 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.3.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-300 CPU 315-2 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-300 CPU 315F-2 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-300 CPU 315T-3 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-300 CPU 317-2 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-300 CPU 317F-2 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-300 CPU 317T-3 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-300 CPU 317TF-3 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-300 CPU 319-3 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-300 CPU 319F-3 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-400 CPU 412-2 PN V7",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V7.0.3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V6.0.9",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-400 PN/DP V6 CPU family (incl. SIPLUS variants)",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V6.0.7",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-410 CPU family (incl. SIPLUS variants)",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V8.1",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC WinAC RTX 2010",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V2010 SP3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC WinAC RTX F 2010",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V2010 SP3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SINUMERIK 828D",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V4.7 SP6 HF1",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIPLUS ET 200S IM151-8 PN/DP CPU",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIPLUS ET 200S IM151-8F PN/DP CPU",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIPLUS NET CP 443-1",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIPLUS NET CP 443-1 Advanced",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIPLUS S7-300 CPU 314C-2 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.3.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIPLUS S7-300 CPU 315-2 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIPLUS S7-300 CPU 315F-2 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIPLUS S7-300 CPU 317-2 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIPLUS S7-300 CPU 317F-2 PN/DP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions < V3.2.16",
              "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": "Softnet PROFINET IO for PC-based Windows systems",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "All versions",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}