{
  "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" : "Firefox ist ein Open Source Web Browser. \r\nESR ist die Variante mit verlängertem Support.\r\nThunderbird ist ein Open Source E-Mail Client.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Mozilla Thunderbird ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen, beliebigen Code auszuführen oder andere, nicht näher spezifizierte Angriffe durchzuführen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Android\n- iPhoneOS\n- MacOS X\n- Sonstiges\n- UNIX\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-2026-0997 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0997.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-0997 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0997"
    }, {
      "category" : "external",
      "summary" : "Mozilla Security Advisory MFSA 2026-25 Security Vulnerabilities fixed in Firefox 149.0.2 vom 2026-04-07",
      "url" : "https://www.mozilla.org/en-US/security/advisories/mfsa2026-25/"
    }, {
      "category" : "external",
      "summary" : "Mozilla Security Advisory MFSA 2026-26 Security Vulnerabilities fixed in Firefox ESR 115.34.1 vom 2026-04-07",
      "url" : "https://www.mozilla.org/en-US/security/advisories/mfsa2026-26/"
    }, {
      "category" : "external",
      "summary" : "Mozilla Security Advisory MFSA 2026-27 Security Vulnerabilities fixed in Firefox ESR 140.9.1 vom 2026-04-07",
      "url" : "https://www.mozilla.org/en-US/security/advisories/mfsa2026-27/"
    }, {
      "category" : "external",
      "summary" : "Mozilla Security Advisory MFSA 2026-28 Security Vulnerabilities fixed in Thunderbird 149.0.2 vom 2026-04-07",
      "url" : "https://www.mozilla.org/en-US/security/advisories/mfsa2026-28/"
    }, {
      "category" : "external",
      "summary" : "Mozilla Security Advisory MFSA 2026-29 Security Vulnerabilities fixed in Thunderbird 140.9.1 vom 2026-04-07",
      "url" : "https://www.mozilla.org/en-US/security/advisories/mfsa2026-29/"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DSA-6202 vom 2026-04-08",
      "url" : "https://lists.debian.org/debian-security-announce/2026/msg00112.html"
    }, {
      "category" : "external",
      "summary" : "openSUSE Security Update OPENSUSE-SU-2026:10503-1 vom 2026-04-09",
      "url" : "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/PTRDAEGUXD3AWAVJMNQHBTJSF46GEBLX/"
    }, {
      "category" : "external",
      "summary" : "openSUSE Security Update OPENSUSE-SU-2026:10501-1 vom 2026-04-09",
      "url" : "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/JEKBDG6VTF2J5KBSXUAZRCQ3BDEUDKVP/"
    } ],
    "source_lang" : "en-US",
    "title" : "Mozilla Firefox und Thunderbird: Mehrere Schwachstellen",
    "tracking" : {
      "current_release_date" : "2026-04-09T22:00:00.000+00:00",
      "generator" : {
        "date" : "2026-04-10T07:04:34.147+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.5.0"
        }
      },
      "id" : "WID-SEC-W-2026-0997",
      "initial_release_date" : "2026-04-07T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-04-07T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2026-04-08T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2026-04-09T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von openSUSE aufgenommen"
      } ],
      "status" : "final",
      "version" : "3"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "category" : "product_name",
        "name" : "Debian Linux",
        "product" : {
          "name" : "Debian Linux",
          "product_id" : "2951",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:debian:debian_linux:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Debian"
    }, {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<149.0.2",
          "product" : {
            "name" : "Mozilla Firefox <149.0.2",
            "product_id" : "T052476"
          }
        }, {
          "category" : "product_version",
          "name" : "149.0.2",
          "product" : {
            "name" : "Mozilla Firefox 149.0.2",
            "product_id" : "T052476-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mozilla:firefox:149.0.2"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Firefox"
      }, {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<115.34.1",
          "product" : {
            "name" : "Mozilla Firefox ESR <115.34.1",
            "product_id" : "T052477"
          }
        }, {
          "category" : "product_version",
          "name" : "115.34.1",
          "product" : {
            "name" : "Mozilla Firefox ESR 115.34.1",
            "product_id" : "T052477-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mozilla:firefox_esr:115.34.1"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<140.9.1",
          "product" : {
            "name" : "Mozilla Firefox ESR <140.9.1",
            "product_id" : "T052478"
          }
        }, {
          "category" : "product_version",
          "name" : "140.9.1",
          "product" : {
            "name" : "Mozilla Firefox ESR 140.9.1",
            "product_id" : "T052478-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mozilla:firefox_esr:140.9.1"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Firefox ESR"
      }, {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<149.0.2",
          "product" : {
            "name" : "Mozilla Thunderbird <149.0.2",
            "product_id" : "T052479"
          }
        }, {
          "category" : "product_version",
          "name" : "149.0.2",
          "product" : {
            "name" : "Mozilla Thunderbird 149.0.2",
            "product_id" : "T052479-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mozilla:thunderbird:149.0.2"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<140.9.1",
          "product" : {
            "name" : "Mozilla Thunderbird <140.9.1",
            "product_id" : "T052480"
          }
        }, {
          "category" : "product_version",
          "name" : "140.9.1",
          "product" : {
            "name" : "Mozilla Thunderbird 140.9.1",
            "product_id" : "T052480-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mozilla:thunderbird:140.9.1"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Thunderbird"
      } ],
      "category" : "vendor",
      "name" : "Mozilla"
    }, {
      "branches" : [ {
        "category" : "product_name",
        "name" : "SUSE openSUSE",
        "product" : {
          "name" : "SUSE openSUSE",
          "product_id" : "T027843",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:suse:opensuse:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "SUSE"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2026-5731",
    "product_status" : {
      "known_affected" : [ "2951", "T052480", "T027843", "T052478", "T052479", "T052476", "T052477" ]
    },
    "release_date" : "2026-04-07T22:00:00.000+00:00",
    "title" : "CVE-2026-5731"
  }, {
    "cve" : "CVE-2026-5732",
    "product_status" : {
      "known_affected" : [ "2951", "T052480", "T027843", "T052478", "T052479", "T052476", "T052477" ]
    },
    "release_date" : "2026-04-07T22:00:00.000+00:00",
    "title" : "CVE-2026-5732"
  }, {
    "cve" : "CVE-2026-5733",
    "product_status" : {
      "known_affected" : [ "2951", "T052480", "T027843", "T052478", "T052479", "T052476", "T052477" ]
    },
    "release_date" : "2026-04-07T22:00:00.000+00:00",
    "title" : "CVE-2026-5733"
  }, {
    "cve" : "CVE-2026-5734",
    "product_status" : {
      "known_affected" : [ "2951", "T052480", "T027843", "T052478", "T052479", "T052476", "T052477" ]
    },
    "release_date" : "2026-04-07T22:00:00.000+00:00",
    "title" : "CVE-2026-5734"
  }, {
    "cve" : "CVE-2026-5735",
    "product_status" : {
      "known_affected" : [ "2951", "T052480", "T027843", "T052478", "T052479", "T052476", "T052477" ]
    },
    "release_date" : "2026-04-07T22:00:00.000+00:00",
    "title" : "CVE-2026-5735"
  } ]
}