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    CVE-2014-8642

    Mozilla Firefox before 35.0 and SeaMonkey before 2.32 do not consider the id-pkix-ocsp-nocheck extension in deciding whether to trust an OCSP responder, which makes it easier for remote attackers to obtain sensitive information by sniffing the network during a session in which there was an incorrect decision to accept a compromised and revoked certificate.

    Published:Jan 14, 2015
    Last Modified:Apr 12, 2025
    EPS:Jan 14, 2015
    EPSS Score:0.00659
    CVSS Score:4.3

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Seamonkey
    Vendor
    Opensuse
    Product
    Opensuse

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-295 Improper Certificate Validation

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    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, …
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    References

    http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00014.html
    http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00002.html
    http://secunia.com/advisories/62242
    http://secunia.com/advisories/62250
    http://secunia.com/advisories/62253
    http://secunia.com/advisories/62316
    http://secunia.com/advisories/62418
    http://secunia.com/advisories/62446
    http://secunia.com/advisories/62790
    http://www.mozilla.org/security/announce/2014/mfsa2015-08.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
    http://www.securityfocus.com/bid/72042
    http://www.securitytracker.com/id/1031533
    https://bugzilla.mozilla.org/show_bug.cgi?id=1079658
    https://exchange.xforce.ibmcloud.com/vulnerabilities/99963
    https://security.gentoo.org/glsa/201504-01
    http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00014.html
    http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00002.html
    http://secunia.com/advisories/62242
    http://secunia.com/advisories/62250
    http://secunia.com/advisories/62253
    http://secunia.com/advisories/62316
    http://secunia.com/advisories/62418
    http://secunia.com/advisories/62446
    http://secunia.com/advisories/62790
    http://www.mozilla.org/security/announce/2014/mfsa2015-08.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
    http://www.securityfocus.com/bid/72042
    http://www.securitytracker.com/id/1031533
    https://bugzilla.mozilla.org/show_bug.cgi?id=1079658
    https://exchange.xforce.ibmcloud.com/vulnerabilities/99963
    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