{
  "document" : {
    "aggregate_severity" : {
      "text" : "hoch"
    },
    "category" : "csaf_base",
    "csaf_version" : "2.0",
    "distribution" : {
      "tlp" : {
        "label" : "WHITE",
        "url" : "https://www.first.org/tlp/"
      }
    },
    "lang" : "de-DE",
    "notes" : [ {
      "category" : "legal_disclaimer",
      "text" : "Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen."
    }, {
      "category" : "description",
      "text" : "UniFi ist Ubiquiti's End-to-End-Netzwerk-Ökosystem für Unternehmen und Smart Homes.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in Ubiquiti UniFi Building Bridge- und Device Bridge-Produkten ausnutzen, um beliebigen Programmcode auszuführen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Hardware Appliance\n- Sonstiges",
      "title" : "Betroffene Betriebssysteme"
    } ],
    "publisher" : {
      "category" : "other",
      "contact_details" : "csaf-provider@cert-bund.de",
      "name" : "Bundesamt für Sicherheit in der Informationstechnik",
      "namespace" : "https://www.bsi.bund.de"
    },
    "references" : [ {
      "category" : "self",
      "summary" : "WID-SEC-W-2026-0022 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0022.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-0022 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0022"
    }, {
      "category" : "external",
      "summary" : "UniFi Security Advisory Bulletin 060 vom 2026-01-06",
      "url" : "https://community.ui.com/releases/Security-Advisory-Bulletin-060-060/cde18da7-2bc4-41bb-a9cc-48a4a4c479c1"
    } ],
    "source_lang" : "en-US",
    "title" : "Ubiquiti UniFi Building Bridge und Device Bridge: Schwachstelle ermöglicht Codeausführung",
    "tracking" : {
      "current_release_date" : "2026-01-08T23:00:00.000+00:00",
      "generator" : {
        "date" : "2026-01-09T07:41:16.598+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.5.0"
        }
      },
      "id" : "WID-SEC-W-2026-0022",
      "initial_release_date" : "2026-01-06T23:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-01-06T23:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2026-01-08T23:00:00.000+00:00",
        "number" : "2",
        "summary" : "Referenz(en) aufgenommen: EUVD-2026-1491"
      } ],
      "status" : "final",
      "version" : "2"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "UBB-XG <1.2.3",
          "product" : {
            "name" : "Ubiquiti UniFi UBB-XG <1.2.3",
            "product_id" : "T049722"
          }
        }, {
          "category" : "product_version",
          "name" : "UBB-XG 1.2.3",
          "product" : {
            "name" : "Ubiquiti UniFi UBB-XG 1.2.3",
            "product_id" : "T049722-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:ubnt:unifi:ubb-xg__1.2.3"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "UDB-Pro/UDB-Pro-Sector <1.4.2",
          "product" : {
            "name" : "Ubiquiti UniFi UDB-Pro/UDB-Pro-Sector <1.4.2",
            "product_id" : "T049723"
          }
        }, {
          "category" : "product_version",
          "name" : "UDB-Pro/UDB-Pro-Sector 1.4.2",
          "product" : {
            "name" : "Ubiquiti UniFi UDB-Pro/UDB-Pro-Sector 1.4.2",
            "product_id" : "T049723-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:ubnt:unifi:udb-proudb-pro-sector__1.4.2"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "UBB <3.1.7",
          "product" : {
            "name" : "Ubiquiti UniFi UBB <3.1.7",
            "product_id" : "T049724"
          }
        }, {
          "category" : "product_version",
          "name" : "UBB 3.1.7",
          "product" : {
            "name" : "Ubiquiti UniFi UBB 3.1.7",
            "product_id" : "T049724-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:ubnt:unifi:ubb__3.1.7"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "UniFi"
      } ],
      "category" : "vendor",
      "name" : "Ubiquiti"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2026-21638",
    "product_status" : {
      "known_affected" : [ "T049724", "T049723", "T049722" ]
    },
    "release_date" : "2026-01-06T23:00:00.000+00:00",
    "title" : "CVE-2026-21638"
  } ]
}