{
  "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-2021-37182",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-37182",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2022-06-14T09:21:24.000Z",
    "updatedAt": "2024-08-04T01:16:03.731Z",
    "importedAt": "2026-10-24T01:56:32.228Z",
    "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 SCALANCE XM408-4C (All versions < V6.5), SCALANCE XM408-4C (L3 int.) (All versions < V6.5), SCALANCE XM408-8C (All versions < V6.5), SCALANCE XM408-8C (L3 int.) (All versions < V6.5), SCALANCE XM416-4C (All versions < V6.5), SCALANCE XM416-4C (L3 int.) (All versions < V6.5), SCALANCE XR524-8C, 1x230V (All versions < V6.5), SCALANCE XR524-8C, 1x230V (L3 int.) (All versions < V6.5), SCALANCE XR524-8C, 24V (All versions < V6.5), SCALANCE XR524-8C, 24V (L3 int.) (All versions < V6.5), SCALANCE XR524-8C, 2x230V (All versions < V6.5), SCALANCE XR524-8C, 2x230V (L3 int.) (All versions < V6.5), SCALANCE XR526-8C, 1x230V (All versions < V6.5), SCALANCE XR526-8C, 1x230V (L3 int.) (All versions < V6.5), SCALANCE XR526-8C, 24V (All versions < V6.5), SCALANCE XR526-8C, 24V (L3 int.) (All versions < V6.5), SCALANCE XR526-8C, 2x230V (All versions < V6.5), SCALANCE XR526-8C, 2x230V (L3 int.) (All versions < V6.5), SCALANCE XR528-6M (All versions < V6.5), SCALANCE XR528-6M (2HR2) (All versions < V6.5), SCALANCE XR528-6M (2HR2, L3 int.) (All versions < V6.5), SCALANCE XR528-6M (L3 int.) (All versions < V6.5), SCALANCE XR552-12M (All versions < V6.5), SCALANCE XR552-12M (2HR2) (All versions < V6.5), SCALANCE XR552-12M (2HR2) (All versions < V6.5), SCALANCE XR552-12M (2HR2, L3 int.) (All versions < V6.5). The OSPF protocol implementation in affected devices fails to verify the checksum and length fields in the OSPF LS Update messages. An unauthenticated remote attacker could exploit this vulnerability to cause interruptions in the network by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device.",
      "affected": [
        {
          "vendor": "Siemens",
          "product": "SCALANCE XM408-4C",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XM408-4C (L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XM408-8C",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XM408-8C (L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XM416-4C",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XM416-4C (L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR524-8C, 1x230V",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR524-8C, 1x230V (L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR524-8C, 24V",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR524-8C, 24V (L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR524-8C, 2x230V",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR524-8C, 2x230V (L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR526-8C, 1x230V",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR526-8C, 1x230V (L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR526-8C, 24V",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR526-8C, 24V (L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR526-8C, 2x230V",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR526-8C, 2x230V (L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR528-6M",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR528-6M (2HR2)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR528-6M (2HR2, L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR528-6M (L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR552-12M",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR552-12M (2HR2)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR552-12M (2HR2)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SCALANCE XR552-12M (2HR2, L3 int.)",
          "versions": [
            {
              "version": "All versions < V6.5",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}