{
  "threat_severity" : "Moderate",
  "public_date" : "2025-10-14T12:27:35Z",
  "bugzilla" : {
    "description" : "thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type",
    "id" : "2403770",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2403770"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-436",
  "details" : [ "A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.", "A flaw was found in Thunderbird and Firefox. The Mozilla Foundation's Security Advisory describes the following issue:\nA malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header." ],
  "statement" : "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2025-10-15T00:00:00Z",
    "advisory" : "RHSA-2025:18154",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.0",
    "package" : "firefox-0:140.4.0-3.el10_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2025-10-20T00:00:00Z",
    "advisory" : "RHSA-2025:18320",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.0",
    "package" : "thunderbird-0:140.4.0-2.el10_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
    "release_date" : "2025-10-30T00:00:00Z",
    "advisory" : "RHSA-2025:19278",
    "cpe" : "cpe:/o:redhat:rhel_els:7",
    "package" : "firefox-0:140.4.0-4.el7_9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2025-10-20T00:00:00Z",
    "advisory" : "RHSA-2025:18285",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "firefox-0:140.4.0-3.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2025-10-22T00:00:00Z",
    "advisory" : "RHSA-2025:18983",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "thunderbird-0:140.4.0-2.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Advanced Update Support",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19938",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.2",
    "package" : "thunderbird-0:140.4.0-2.el8_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Advanced Update Support",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21054",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.2",
    "package" : "firefox-0:140.4.0-3.el8_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19939",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.4",
    "package" : "thunderbird-0:140.4.0-2.el8_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21055",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.4",
    "package" : "firefox-0:140.4.0-3.el8_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19939",
    "cpe" : "cpe:/a:redhat:rhel_eus_long_life:8.4",
    "package" : "thunderbird-0:140.4.0-2.el8_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21055",
    "cpe" : "cpe:/a:redhat:rhel_eus_long_life:8.4",
    "package" : "firefox-0:140.4.0-3.el8_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19941",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.6",
    "package" : "thunderbird-0:140.4.0-2.el8_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21056",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.6",
    "package" : "firefox-0:140.4.0-3.el8_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19941",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.6",
    "package" : "thunderbird-0:140.4.0-2.el8_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21056",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.6",
    "package" : "firefox-0:140.4.0-3.el8_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19941",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.6",
    "package" : "thunderbird-0:140.4.0-2.el8_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21056",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.6",
    "package" : "firefox-0:140.4.0-3.el8_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19942",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.8",
    "package" : "thunderbird-0:140.4.0-2.el8_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21057",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.8",
    "package" : "firefox-0:140.4.0-3.el8_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19942",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.8",
    "package" : "thunderbird-0:140.4.0-2.el8_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21057",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.8",
    "package" : "firefox-0:140.4.0-3.el8_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-10-15T00:00:00Z",
    "advisory" : "RHSA-2025:18155",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "firefox-0:140.4.0-3.el9_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-10-20T00:00:00Z",
    "advisory" : "RHSA-2025:18321",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "thunderbird-0:140.4.0-2.el9_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19943",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.0",
    "package" : "thunderbird-0:140.4.0-2.el9_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21058",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.0",
    "package" : "firefox-0:140.4.0-3.el9_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19944",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.2",
    "package" : "thunderbird-0:140.4.0-2.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21064",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.2",
    "package" : "firefox-0:140.4.0-3.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.4 Extended Update Support",
    "release_date" : "2025-11-10T00:00:00Z",
    "advisory" : "RHSA-2025:19945",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.4",
    "package" : "thunderbird-0:140.4.0-2.el9_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.4 Extended Update Support",
    "release_date" : "2025-11-12T00:00:00Z",
    "advisory" : "RHSA-2025:21059",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.4",
    "package" : "firefox-0:140.4.0-3.el9_4"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "rhel10/firefox-flatpak",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "rhel10/thunderbird-flatpak",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "firefox",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "thunderbird",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "thunderbird",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2025-11712\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-11712\nhttps://www.mozilla.org/security/advisories/mfsa2025-83/#CVE-2025-11712\nhttps://www.mozilla.org/security/advisories/mfsa2025-85/#CVE-2025-11712" ],
  "name" : "CVE-2025-11712",
  "csaw" : false
}