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WID-SEC-W-2026-1427

Vulnerability from csaf_certbund - Published: 2026-05-07 22:00 - Updated: 2026-06-09 22:00
Summary
Mozilla Firefox und Firefox ESR: Mehrere Schwachstellen
Severity
Mittel
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.
Angriff: Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Mozilla Firefox ESR ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, und um beliebigen Programmcode auszuführen.
Betroffene Betriebssysteme: - Linux - Sonstiges - UNIX - Windows
CVE-2026-8090
Affected products
Product Identifier Version Remediation
Mozilla Firefox <150.0.2
Mozilla / Firefox
 <150.0.2
Mozilla Thunderbird <150.0.2
Mozilla / Thunderbird
 <150.0.2
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Red Hat Enterprise Linux 8
Red Hat / Enterprise Linux
 cpe:/o:redhat:enterprise_linux:8 8
Red Hat Enterprise Linux
Red Hat / Enterprise Linux
 cpe:/o:redhat:enterprise_linux:- —
SUSE openSUSE
SUSE
 cpe:/o:suse:opensuse:- —
Amazon Linux 2
Amazon
 cpe:/o:amazon:linux_2:- —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Mozilla Firefox ESR <140.10.2
Mozilla / Firefox ESR
 <140.10.2
Mozilla Thunderbird <140.10.2
Mozilla / Thunderbird
 <140.10.2
Mozilla Firefox ESR <115.35.2
Mozilla / Firefox ESR
 <115.35.2
CVE-2026-8091
Affected products
Known affected 12 products, the same list as for CVE-2026-8090
CVE-2026-8092
Affected products
Known affected 12 products, the same list as for CVE-2026-8090
CVE-2026-8093
Affected products
Known affected 12 products, the same list as for CVE-2026-8090
CVE-2026-8094
Affected products
Known affected 12 products, the same list as for CVE-2026-8090
References
URL Category
https://wid.cert-bund.de/.well-known/csaf/white/2… self
https://wid.cert-bund.de/portal/wid/securityadvis… self
https://www.mozilla.org/en-US/security/advisories… external
https://www.mozilla.org/en-US/security/advisories… external
https://www.mozilla.org/en-US/security/advisories… external
https://www.mozilla.org/en-US/security/advisories… external
https://lists.opensuse.org/archives/list/security… external
https://www.mozilla.org/en-US/security/advisories… external
https://lists.debian.org/debian-security-announce… external
https://lists.debian.org/debian-lts-announce/2026… external
https://lists.opensuse.org/archives/list/security… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.debian.org/debian-security-announce… external
https://lists.debian.org/debian-lts-announce/2026… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.opensuse.org/archives/list/security… external
https://access.redhat.com/errata/RHSA-2026:19160 external
https://access.redhat.com/errata/RHSA-2026:20574 external
https://access.redhat.com/errata/RHSA-2026:20566 external
https://linux.oracle.com/errata/ELSA-2026-20566.html external
https://alas.aws.amazon.com/AL2/ALAS2-2026-3315.html external
https://alas.aws.amazon.com/AL2/ALAS2FIREFOX-2026… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://access.redhat.com/errata/RHSA-2026:24511 external
https://access.redhat.com/errata/RHSA-2026:24508 external
https://access.redhat.com/errata/RHSA-2026:24509 external
https://access.redhat.com/errata/RHSA-2026:24510 external
https://access.redhat.com/errata/RHSA-2026:24516 external
https://access.redhat.com/errata/RHSA-2026:24755 external
https://access.redhat.com/errata/RHSA-2026:24983 external
https://access.redhat.com/errata/RHSA-2026:25015 external
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "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.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Mozilla Firefox ESR ausnutzen, um einen nicht n\u00e4her spezifizierten Angriff durchzuf\u00fchren, und um beliebigen Programmcode auszuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- Sonstiges\n- UNIX\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-2026-1427 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1427.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1427 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1427"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory mfsa2026-40 vom 2026-05-07",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-40/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory mfsa2026-41 vom 2026-05-07",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-41/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory mfsa2026-42 vom 2026-05-07",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-42/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory MFSA2026-44 vom 2026-05-08",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-44/"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10720-1 vom 2026-05-10",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/KFDURXEN4GVPVLC44K7B2TQQOK5ICNF6/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory MFSA2026-43 vom 2026-05-08",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-43/"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6254 vom 2026-05-08",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00165.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4575 vom 2026-05-09",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00019.html"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10738-1 vom 2026-05-12",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/A4AUALKQ337QIHCYV5UITK5G356NOEEM/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1830-1 vom 2026-05-13",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026012.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6267 vom 2026-05-14",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00178.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4582 vom 2026-05-14",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00026.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21607-1 vom 2026-05-15",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026034.html"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:20741-1 vom 2026-05-19",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/EM2GMJVOTTRV34O4M63YTIS43WPBRQKS/"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19160 vom 2026-05-19",
        "url": "https://access.redhat.com/errata/RHSA-2026:19160"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:20574 vom 2026-05-26",
        "url": "https://access.redhat.com/errata/RHSA-2026:20574"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:20566 vom 2026-05-26",
        "url": "https://access.redhat.com/errata/RHSA-2026:20566"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-20566 vom 2026-05-27",
        "url": "https://linux.oracle.com/errata/ELSA-2026-20566.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2-2026-3315 vom 2026-05-26",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2-2026-3315.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2FIREFOX-2026-060 vom 2026-05-26",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2FIREFOX-2026-060.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:2109-1 vom 2026-05-29",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026378.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:24511 vom 2026-06-08",
        "url": "https://access.redhat.com/errata/RHSA-2026:24511"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:24508 vom 2026-06-08",
        "url": "https://access.redhat.com/errata/RHSA-2026:24508"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:24509 vom 2026-06-08",
        "url": "https://access.redhat.com/errata/RHSA-2026:24509"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:24510 vom 2026-06-08",
        "url": "https://access.redhat.com/errata/RHSA-2026:24510"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:24516 vom 2026-06-08",
        "url": "https://access.redhat.com/errata/RHSA-2026:24516"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:24755 vom 2026-06-09",
        "url": "https://access.redhat.com/errata/RHSA-2026:24755"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:24983 vom 2026-06-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:24983"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:25015 vom 2026-06-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:25015"
      }
    ],
    "source_lang": "en-US",
    "title": "Mozilla Firefox und Firefox ESR: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-06-09T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-10T09:45:57.625+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1427",
      "initial_release_date": "2026-05-07T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-05-07T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-05-10T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Mozilla, openSUSE und Debian aufgenommen"
        },
        {
          "date": "2026-05-12T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2026-05-14T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE und Debian aufgenommen"
        },
        {
          "date": "2026-05-18T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2026-05-19T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-05-25T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-05-26T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Oracle Linux und Amazon aufgenommen"
        },
        {
          "date": "2026-05-31T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-06-08T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-06-09T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Red Hat aufgenommen"
        }
      ],
      "status": "final",
      "version": "11"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Amazon Linux 2",
            "product": {
              "name": "Amazon Linux 2",
              "product_id": "398363",
              "product_identification_helper": {
                "cpe": "cpe:/o:amazon:linux_2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Amazon"
      },
      {
        "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": "\u003c150.0.2",
                "product": {
                  "name": "Mozilla Firefox \u003c150.0.2",
                  "product_id": "T053683"
                }
              },
              {
                "category": "product_version",
                "name": "150.0.2",
                "product": {
                  "name": "Mozilla Firefox 150.0.2",
                  "product_id": "T053683-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox:150.0.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Firefox"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c140.10.2",
                "product": {
                  "name": "Mozilla Firefox ESR \u003c140.10.2",
                  "product_id": "T053684"
                }
              },
              {
                "category": "product_version",
                "name": "140.10.2",
                "product": {
                  "name": "Mozilla Firefox ESR 140.10.2",
                  "product_id": "T053684-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox_esr:140.10.2"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c115.35.2",
                "product": {
                  "name": "Mozilla Firefox ESR \u003c115.35.2",
                  "product_id": "T053685"
                }
              },
              {
                "category": "product_version",
                "name": "115.35.2",
                "product": {
                  "name": "Mozilla Firefox ESR 115.35.2",
                  "product_id": "T053685-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox_esr:115.35.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Firefox ESR"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c140.10.2",
                "product": {
                  "name": "Mozilla Thunderbird \u003c140.10.2",
                  "product_id": "T053750"
                }
              },
              {
                "category": "product_version",
                "name": "140.10.2",
                "product": {
                  "name": "Mozilla Thunderbird 140.10.2",
                  "product_id": "T053750-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:thunderbird:140.10.2"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c150.0.2",
                "product": {
                  "name": "Mozilla Thunderbird \u003c150.0.2",
                  "product_id": "T053760"
                }
              },
              {
                "category": "product_version",
                "name": "150.0.2",
                "product": {
                  "name": "Mozilla Thunderbird 150.0.2",
                  "product_id": "T053760-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:thunderbird:150.0.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Thunderbird"
          }
        ],
        "category": "vendor",
        "name": "Mozilla"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux",
                "product": {
                  "name": "Red Hat Enterprise Linux",
                  "product_id": "67646",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:-"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "8",
                "product": {
                  "name": "Red Hat Enterprise Linux 8",
                  "product_id": "T054691",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:8"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Enterprise Linux"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          },
          {
            "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-2026-8090",
      "product_status": {
        "known_affected": [
          "T053683",
          "T053760",
          "2951",
          "T002207",
          "T054691",
          "67646",
          "T027843",
          "398363",
          "T004914",
          "T053684",
          "T053750",
          "T053685"
        ]
      },
      "release_date": "2026-05-07T22:00:00.000+00:00",
      "title": "CVE-2026-8090"
    },
    {
      "cve": "CVE-2026-8091",
      "product_status": {
        "known_affected": [
          "T053683",
          "T053760",
          "2951",
          "T002207",
          "T054691",
          "67646",
          "T027843",
          "398363",
          "T004914",
          "T053684",
          "T053750",
          "T053685"
        ]
      },
      "release_date": "2026-05-07T22:00:00.000+00:00",
      "title": "CVE-2026-8091"
    },
    {
      "cve": "CVE-2026-8092",
      "product_status": {
        "known_affected": [
          "T053683",
          "T053760",
          "2951",
          "T002207",
          "T054691",
          "67646",
          "T027843",
          "398363",
          "T004914",
          "T053684",
          "T053750",
          "T053685"
        ]
      },
      "release_date": "2026-05-07T22:00:00.000+00:00",
      "title": "CVE-2026-8092"
    },
    {
      "cve": "CVE-2026-8093",
      "product_status": {
        "known_affected": [
          "T053683",
          "T053760",
          "2951",
          "T002207",
          "T054691",
          "67646",
          "T027843",
          "398363",
          "T004914",
          "T053684",
          "T053750",
          "T053685"
        ]
      },
      "release_date": "2026-05-07T22:00:00.000+00:00",
      "title": "CVE-2026-8093"
    },
    {
      "cve": "CVE-2026-8094",
      "product_status": {
        "known_affected": [
          "T053683",
          "T053760",
          "2951",
          "T002207",
          "T054691",
          "67646",
          "T027843",
          "398363",
          "T004914",
          "T053684",
          "T053750",
          "T053685"
        ]
      },
      "release_date": "2026-05-07T22:00:00.000+00:00",
      "title": "CVE-2026-8094"
    }
  ]
}



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Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.