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    CVE-2010-1121

    Mozilla Firefox 3.6.x before 3.6.3 does not properly manage the scopes of DOM nodes that are moved from one document to another, which allows remote attackers to conduct use-after-free attacks and execute arbitrary code via unspecified vectors involving improper interaction with garbage collection, as demonstrated by Nils during a Pwn2Own competition at CanSecWest 2010.

    Published:Mar 25, 2010
    Last Modified:Apr 11, 2025
    EPS:Mar 25, 2010
    EPSS Score:0.05544
    CVSS Score:10

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    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://dvlabs.tippingpoint.com/blog/2010/02/15/pwn2own-2010
    http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043369.html
    http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043405.html
    http://lists.opensuse.org/opensuse-security-announce/2010-07/msg00005.html
    http://news.cnet.com/8301-27080_3-20001126-245.html
    http://secunia.com/advisories/40323
    http://secunia.com/advisories/40326
    http://secunia.com/advisories/40401
    http://secunia.com/advisories/40481
    http://support.avaya.com/css/P8/documents/100091069
    http://twitter.com/thezdi/statuses/11005277222
    http://ubuntu.com/usn/usn-930-1
    http://www.mozilla.org/security/announce/2010/mfsa2010-25.html
    http://www.redhat.com/support/errata/RHSA-2010-0500.html
    http://www.redhat.com/support/errata/RHSA-2010-0501.html
    http://www.securitytracker.com/id?1023817
    http://www.ubuntu.com/usn/usn-930-2
    http://www.vupen.com/english/advisories/2010/1557
    http://www.vupen.com/english/advisories/2010/1592
    http://www.vupen.com/english/advisories/2010/1640
    http://www.vupen.com/english/advisories/2010/1773
    https://bugzilla.mozilla.org/show_bug.cgi?id=555109
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10924
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6844
    http://dvlabs.tippingpoint.com/blog/2010/02/15/pwn2own-2010
    http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043369.html
    http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043405.html
    http://lists.opensuse.org/opensuse-security-announce/2010-07/msg00005.html
    http://news.cnet.com/8301-27080_3-20001126-245.html
    http://secunia.com/advisories/40323
    http://secunia.com/advisories/40326
    http://secunia.com/advisories/40401
    http://secunia.com/advisories/40481
    http://support.avaya.com/css/P8/documents/100091069
    http://twitter.com/thezdi/statuses/11005277222
    http://ubuntu.com/usn/usn-930-1
    http://www.mozilla.org/security/announce/2010/mfsa2010-25.html
    http://www.redhat.com/support/errata/RHSA-2010-0500.html
    http://www.redhat.com/support/errata/RHSA-2010-0501.html
    http://www.securitytracker.com/id?1023817
    http://www.ubuntu.com/usn/usn-930-2
    http://www.vupen.com/english/advisories/2010/1557
    http://www.vupen.com/english/advisories/2010/1592
    http://www.vupen.com/english/advisories/2010/1640
    http://www.vupen.com/english/advisories/2010/1773
    https://bugzilla.mozilla.org/show_bug.cgi?id=555109
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10924
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6844

    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