{
  "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" : "Microsoft Authenticator ist eine App, die zur Zwei-Faktor-Authentifizierung und Kontoverwaltung verwendet wird.\r\nMicrosoft Copilot ist ein KI-Assistent, der in verschiedene Microsoft-Produkte integriert werden kann.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein Angreifer kann mehrere Schwachstellen in Microsoft Authenticator und Microsoft 365 Copilot ausnutzen, um seine Privilegien zu erhöhen, und um Informationen offenzulegen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Sonstiges\n- Windows",
      "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-2026-3457 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3457.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-3457 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3457"
    }, {
      "category" : "external",
      "summary" : "Microsoft Leitfaden für Sicherheitsupdates",
      "url" : "https://msrc.microsoft.com/update-guide/"
    }, {
      "category" : "external",
      "summary" : "Microsoft Security Advisory CVE-2026-80097",
      "url" : "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80097"
    }, {
      "category" : "external",
      "summary" : "Microsoft Security Advisory CVE-2026-58611",
      "url" : "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58611"
    }, {
      "category" : "external",
      "summary" : "Microsoft Security Advisory CVE-2026-85885",
      "url" : "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85885"
    }, {
      "category" : "external",
      "summary" : "Microsoft Security Advisory CVE-2026-85887",
      "url" : "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85887"
    }, {
      "category" : "external",
      "summary" : "Microsoft Security Advisory CVE-2026-78501",
      "url" : "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78501"
    } ],
    "source_lang" : "en-US",
    "title" : "Microsoft Apps (Authenticator und 365 Copilot): Mehrere Schwachstellen",
    "tracking" : {
      "current_release_date" : "2026-09-17T22:00:00.000+00:00",
      "generator" : {
        "date" : "2026-09-18T12:36:34.738+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.6.0"
        }
      },
      "id" : "WID-SEC-W-2026-3457",
      "initial_release_date" : "2026-09-17T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-09-17T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      } ],
      "status" : "final",
      "version" : "1"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_name",
          "name" : "Microsoft 365 Copilot",
          "product" : {
            "name" : "Microsoft 365 Copilot",
            "product_id" : "T059833",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:microsoft:365_copilot:-"
            }
          }
        }, {
          "category" : "product_version",
          "name" : "365 Copilot's Business Chat",
          "product" : {
            "name" : "Microsoft 365 Copilot 365 Copilot's Business Chat",
            "product_id" : "T059834",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:microsoft:365_copilot:365_copilots_business_chat"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "365 Copilot"
      }, {
        "branches" : [ {
          "category" : "product_version",
          "name" : "for Android",
          "product" : {
            "name" : "Microsoft Authenticator for Android",
            "product_id" : "T059832",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:microsoft:authenticator:for_android"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Authenticator"
      } ],
      "category" : "vendor",
      "name" : "Microsoft"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2026-78501",
    "product_status" : {
      "known_affected" : [ "T059834", "T059833", "T059832" ]
    },
    "release_date" : "2026-09-17T22:00:00.000+00:00",
    "title" : "CVE-2026-78501"
  }, {
    "cve" : "CVE-2026-85885",
    "product_status" : {
      "known_affected" : [ "T059834", "T059833", "T059832" ]
    },
    "release_date" : "2026-09-17T22:00:00.000+00:00",
    "title" : "CVE-2026-85885"
  }, {
    "cve" : "CVE-2026-85887",
    "product_status" : {
      "known_affected" : [ "T059834", "T059833", "T059832" ]
    },
    "release_date" : "2026-09-17T22:00:00.000+00:00",
    "title" : "CVE-2026-85887"
  } ]
}