WID-SEC-W-2026-1606

Vulnerability from csaf_certbund - Published: 2026-05-19 22:00 - Updated: 2026-05-20 22:00
Summary
Mozilla Firefox und Thunderbird: Mehrere Schwachstellen
Severity
Hoch
Notes
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.
Produktbeschreibung: Firefox ist ein Open Source Web Browser. ESR ist die Variante mit verlängertem Support. Thunderbird ist ein Open Source E-Mail Client.
Angriff: Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um beliebigen Code auszuführen, um Informationen offenzulegen, Sicherheitsbeschränkungen zu umgehen (z. B. Sandbox-Escape), den Benutzer zu täuschen, Berechtigungen zu eskalieren oder einen Denial-of-Service-Zustand herbeizuführen.
Betroffene Betriebssysteme: - Android - iPhoneOS - Linux - MacOS X - Windows
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11
Affected products
Product Identifier Version Remediation
Mozilla Thunderbird <151
Mozilla / Thunderbird
<151
Mozilla Firefox ESR <140.11
Mozilla / Firefox ESR
<140.11
Mozilla Firefox ESR <115.36
Mozilla / Firefox ESR
<115.36
Mozilla Firefox <151
Mozilla / Firefox
<151
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:-
Mozilla Thunderbird <140.11
Mozilla / Thunderbird
<140.11

{
  "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 f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Firefox ist ein Open Source Web Browser. \r\nESR ist die Variante mit verl\u00e4ngertem Support.\r\nThunderbird ist ein Open Source E-Mail Client.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um beliebigen Code auszuf\u00fchren, um Informationen offenzulegen, Sicherheitsbeschr\u00e4nkungen zu umgehen (z. B. Sandbox-Escape), den Benutzer zu t\u00e4uschen, Berechtigungen zu eskalieren oder einen Denial-of-Service-Zustand herbeizuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Android\n- iPhoneOS\n- Linux\n- MacOS X\n- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-1606 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1606.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1606 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1606"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory mfsa2026-46 vom 2026-05-19",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-46/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory mfsa2026-47 vom 2026-05-19",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-47/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory mfsa2026-48 vom 2026-05-19",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-48/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory mfsa2026-49 vom 2026-05-19",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-49/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory mfsa2026-50 vom 2026-05-19",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-50/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory mfsa2026-51 vom 2026-05-19",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-51/"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10813-1 vom 2026-05-20",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/N4PBMNGPCFVXRJKTYWURGMAHKO2FKQDE/"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4592 vom 2026-05-20",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00037.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6283 vom 2026-05-20",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00194.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Mozilla Firefox und Thunderbird: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-05-20T22:00:00.000+00:00",
      "generator": {
        "date": "2026-05-21T07:35:42.012+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1606",
      "initial_release_date": "2026-05-19T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-05-19T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-05-20T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von openSUSE und Debian aufgenommen"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "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": "\u003c151",
                "product": {
                  "name": "Mozilla Firefox \u003c151",
                  "product_id": "T054362"
                }
              },
              {
                "category": "product_version",
                "name": "151",
                "product": {
                  "name": "Mozilla Firefox 151",
                  "product_id": "T054362-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox:151"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Firefox"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c115.36",
                "product": {
                  "name": "Mozilla Firefox ESR \u003c115.36",
                  "product_id": "T054363"
                }
              },
              {
                "category": "product_version",
                "name": "115.36",
                "product": {
                  "name": "Mozilla Firefox ESR 115.36",
                  "product_id": "T054363-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox_esr:115.36"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c140.11",
                "product": {
                  "name": "Mozilla Firefox ESR \u003c140.11",
                  "product_id": "T054364"
                }
              },
              {
                "category": "product_version",
                "name": "140.11",
                "product": {
                  "name": "Mozilla Firefox ESR 140.11",
                  "product_id": "T054364-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox_esr:140.11"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Firefox ESR"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c151",
                "product": {
                  "name": "Mozilla Thunderbird \u003c151",
                  "product_id": "T054365"
                }
              },
              {
                "category": "product_version",
                "name": "151",
                "product": {
                  "name": "Mozilla Thunderbird 151",
                  "product_id": "T054365-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:thunderbird:151"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c140.11",
                "product": {
                  "name": "Mozilla Thunderbird \u003c140.11",
                  "product_id": "T054366"
                }
              },
              {
                "category": "product_version",
                "name": "140.11",
                "product": {
                  "name": "Mozilla Thunderbird 140.11",
                  "product_id": "T054366-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:thunderbird:140.11"
                  }
                }
              }
            ],
            "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-2026-8388",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8388"
    },
    {
      "cve": "CVE-2026-8391",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8391"
    },
    {
      "cve": "CVE-2026-8401",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8401"
    },
    {
      "cve": "CVE-2026-8706",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8706"
    },
    {
      "cve": "CVE-2026-8945",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8945"
    },
    {
      "cve": "CVE-2026-8946",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8946"
    },
    {
      "cve": "CVE-2026-8947",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8947"
    },
    {
      "cve": "CVE-2026-8948",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8948"
    },
    {
      "cve": "CVE-2026-8949",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8949"
    },
    {
      "cve": "CVE-2026-8950",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8950"
    },
    {
      "cve": "CVE-2026-8951",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8951"
    },
    {
      "cve": "CVE-2026-8952",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8952"
    },
    {
      "cve": "CVE-2026-8953",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8953"
    },
    {
      "cve": "CVE-2026-8954",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8954"
    },
    {
      "cve": "CVE-2026-8955",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8955"
    },
    {
      "cve": "CVE-2026-8956",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8956"
    },
    {
      "cve": "CVE-2026-8957",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8957"
    },
    {
      "cve": "CVE-2026-8958",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8958"
    },
    {
      "cve": "CVE-2026-8959",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8959"
    },
    {
      "cve": "CVE-2026-8960",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8960"
    },
    {
      "cve": "CVE-2026-8961",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8961"
    },
    {
      "cve": "CVE-2026-8962",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8962"
    },
    {
      "cve": "CVE-2026-8963",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8963"
    },
    {
      "cve": "CVE-2026-8964",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8964"
    },
    {
      "cve": "CVE-2026-8965",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8965"
    },
    {
      "cve": "CVE-2026-8966",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8966"
    },
    {
      "cve": "CVE-2026-8967",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8967"
    },
    {
      "cve": "CVE-2026-8968",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8968"
    },
    {
      "cve": "CVE-2026-8969",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8969"
    },
    {
      "cve": "CVE-2026-8970",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8970"
    },
    {
      "cve": "CVE-2026-8971",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8971"
    },
    {
      "cve": "CVE-2026-8972",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8972"
    },
    {
      "cve": "CVE-2026-8973",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8973"
    },
    {
      "cve": "CVE-2026-8974",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8974"
    },
    {
      "cve": "CVE-2026-8975",
      "product_status": {
        "known_affected": [
          "T054365",
          "T054364",
          "T054363",
          "T054362",
          "2951",
          "T027843",
          "T054366"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-8975"
    }
  ]
}


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Taxonomy of the tags.


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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Detection rules are retrieved from Rulezet.

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