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    CVE-2006-0294

    Mozilla Firefox before 1.5.0.1, Thunderbird 1.5 if running Javascript in mail, and SeaMonkey before 1.0 allow remote attackers to execute arbitrary code by changing an element's style from position:relative to position:static, which causes Gecko to operate on freed memory.

    Published:Feb 2, 2006
    Last Modified:Apr 16, 2026
    EPS:Feb 2, 2006
    EPSS Score:0.0598
    CVSS Score:7.5

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Seamonkey
    Vendor
    Mozilla
    Product
    Thunderbird

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-84144 (CVSS 7.5) — Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence…
    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://secunia.com/advisories/18700
    http://secunia.com/advisories/18704
    http://secunia.com/advisories/22065
    http://securitytracker.com/id?1015570
    http://www.mozilla.org/security/announce/2006/mfsa2006-02.html
    http://www.securityfocus.com/archive/1/446657/100/200/threaded
    http://www.securityfocus.com/bid/16476
    http://www.vupen.com/english/advisories/2006/0413
    http://www.vupen.com/english/advisories/2006/3749
    https://bugzilla.mozilla.org/show_bug.cgi?id=317934
    https://exchange.xforce.ibmcloud.com/vulnerabilities/24431
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1514
    http://secunia.com/advisories/18700
    http://secunia.com/advisories/18704
    http://secunia.com/advisories/22065
    http://securitytracker.com/id?1015570
    http://www.mozilla.org/security/announce/2006/mfsa2006-02.html
    http://www.securityfocus.com/archive/1/446657/100/200/threaded
    http://www.securityfocus.com/bid/16476
    http://www.vupen.com/english/advisories/2006/0413
    http://www.vupen.com/english/advisories/2006/3749
    https://bugzilla.mozilla.org/show_bug.cgi?id=317934
    https://exchange.xforce.ibmcloud.com/vulnerabilities/24431
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1514

    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