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    CVE-2016-5263

    The nsDisplayList::HitTest function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 mishandles rendering display transformation, which allows remote attackers to execute arbitrary code via a crafted web site that leverages "type confusion."

    Published:Aug 2, 2016
    Last Modified:Apr 12, 2025
    EPS:Aug 5, 2016
    EPSS Score:0.00678
    CVSS Score:8.8

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Oracle
    Product
    Linux
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-84143 (CVSS 9.8) — Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of th…
    CVE-2026-84142 (CVSS 9.8) — Internally found bugs present in Thunderbird 154. Some of these bugs showed evidence of memory corruption or a…
    CVE-2026-84141 (CVSS 9.8) — Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR…
    CVE-2026-84140 (CVSS 9.8) — Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ES…
    CVE-2026-84139 (CVSS 6.1) — Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.…
    CVE-2026-84138 (CVSS 6.5) — Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155…
    CVE-2026-84137 (CVSS 4.3) — Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153…
    CVE-2026-84136 (CVSS 6.1) — Other issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, …
    CVE-2026-84135 (CVSS 9.8) — Other issue in Firefox Focus for Android. This vulnerability was fixed in Firefox 155.…

    References

    http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html
    http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html
    http://rhn.redhat.com/errata/RHSA-2016-1551.html
    http://www.debian.org/security/2016/dsa-3640
    http://www.mozilla.org/security/announce/2016/mfsa2016-78.html
    http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
    http://www.securityfocus.com/bid/92258
    http://www.securitytracker.com/id/1036508
    http://www.ubuntu.com/usn/USN-3044-1
    https://bugzilla.mozilla.org/show_bug.cgi?id=1276897
    https://security.gentoo.org/glsa/201701-15
    http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html
    http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html
    http://rhn.redhat.com/errata/RHSA-2016-1551.html
    http://www.debian.org/security/2016/dsa-3640
    http://www.mozilla.org/security/announce/2016/mfsa2016-78.html
    http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
    http://www.securityfocus.com/bid/92258
    http://www.securitytracker.com/id/1036508
    http://www.ubuntu.com/usn/USN-3044-1
    https://bugzilla.mozilla.org/show_bug.cgi?id=1276897
    https://security.gentoo.org/glsa/201701-15

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High