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    CVE-2013-6673

    Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 do not recognize a user's removal of trust from an EV X.509 certificate, which makes it easier for man-in-the-middle attackers to spoof SSL servers in opportunistic circumstances via a valid certificate that is unacceptable to the user.

    Published:Dec 10, 2013
    Last Modified:Nov 25, 2025
    EPS:Dec 11, 2013
    EPSS Score:0.00545
    CVSS Score:5.9

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Seamonkey
    Vendor
    Mozilla
    Product
    Thunderbird
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Suse
    Product
    Linux Enterprise Desktop
    Vendor
    Suse
    Product
    Linux Enterprise Server
    Vendor
    Suse
    Product
    Suse Linux Enterprise Software Development Kit

    Exploits

    https://bugzilla.mozilla.org/show_bug.cgi?id=917380https://bugzilla.mozilla.org/show_bug.cgi?id=917380

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…
    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123437.html
    http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124108.html
    http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124257.html
    http://lists.fedoraproject.org/pipermail/package-announce/2014-January/125470.html
    http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00010.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00085.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00086.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00087.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00119.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00120.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00121.html
    http://lists.opensuse.org/opensuse-updates/2014-01/msg00002.html
    http://www.mozilla.org/security/announce/2013/mfsa2013-113.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
    http://www.securityfocus.com/bid/64213
    http://www.securitytracker.com/id/1029470
    http://www.securitytracker.com/id/1029476
    http://www.ubuntu.com/usn/USN-2052-1
    http://www.ubuntu.com/usn/USN-2053-1
    https://bugzilla.mozilla.org/show_bug.cgi?id=917380
    https://security.gentoo.org/glsa/201504-01
    http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123437.html
    http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124108.html
    http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124257.html
    http://lists.fedoraproject.org/pipermail/package-announce/2014-January/125470.html
    http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00010.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00085.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00086.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00087.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00119.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00120.html
    http://lists.opensuse.org/opensuse-updates/2013-12/msg00121.html
    http://lists.opensuse.org/opensuse-updates/2014-01/msg00002.html
    http://www.mozilla.org/security/announce/2013/mfsa2013-113.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
    http://www.securityfocus.com/bid/64213
    http://www.securitytracker.com/id/1029470
    http://www.securitytracker.com/id/1029476
    http://www.ubuntu.com/usn/USN-2052-1
    http://www.ubuntu.com/usn/USN-2053-1
    https://bugzilla.mozilla.org/show_bug.cgi?id=917380
    https://security.gentoo.org/glsa/201504-01

    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