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    CVE-2008-1240

    LiveConnect in Mozilla Firefox before 2.0.0.13 and SeaMonkey before 1.1.9 does not properly parse the content origin for jar: URIs before sending them to the Java plugin, which allows remote attackers to access arbitrary ports on the local machine. NOTE: this is closely related to CVE-2008-1195.

    Published:Mar 28, 2008
    Last Modified:Apr 23, 2026
    EPS:Mar 28, 2008
    EPSS Score:0.04851
    CVSS Score:5

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Seamonkey

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    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/2008-04/msg00002.html
    http://secunia.com/advisories/29526
    http://secunia.com/advisories/29539
    http://secunia.com/advisories/29541
    http://secunia.com/advisories/29547
    http://secunia.com/advisories/29558
    http://secunia.com/advisories/29560
    http://secunia.com/advisories/29616
    http://secunia.com/advisories/29645
    http://secunia.com/advisories/30327
    http://secunia.com/advisories/30620
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-238492-1
    http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0128
    http://www.debian.org/security/2008/dsa-1532
    http://www.debian.org/security/2008/dsa-1534
    http://www.debian.org/security/2008/dsa-1535
    http://www.gentoo.org/security/en/glsa/glsa-200805-18.xml
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:080
    http://www.mozilla.org/security/announce/2008/mfsa2008-18.html
    http://www.securityfocus.com/archive/1/490196/100/0/threaded
    http://www.securityfocus.com/bid/28448
    http://www.ubuntu.com/usn/usn-592-1
    http://www.us-cert.gov/cas/techalerts/TA08-087A.html
    http://www.vupen.com/english/advisories/2008/0998/references
    http://www.vupen.com/english/advisories/2008/1793/references
    https://exchange.xforce.ibmcloud.com/vulnerabilities/41458
    http://lists.opensuse.org/opensuse-security-announce/2008-04/msg00002.html
    http://secunia.com/advisories/29526
    http://secunia.com/advisories/29539
    http://secunia.com/advisories/29541
    http://secunia.com/advisories/29547
    http://secunia.com/advisories/29558
    http://secunia.com/advisories/29560
    http://secunia.com/advisories/29616
    http://secunia.com/advisories/29645
    http://secunia.com/advisories/30327
    http://secunia.com/advisories/30620
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-238492-1
    http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0128
    http://www.debian.org/security/2008/dsa-1532
    http://www.debian.org/security/2008/dsa-1534
    http://www.debian.org/security/2008/dsa-1535
    http://www.gentoo.org/security/en/glsa/glsa-200805-18.xml
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:080
    http://www.mozilla.org/security/announce/2008/mfsa2008-18.html
    http://www.securityfocus.com/archive/1/490196/100/0/threaded
    http://www.securityfocus.com/bid/28448
    http://www.ubuntu.com/usn/usn-592-1
    http://www.us-cert.gov/cas/techalerts/TA08-087A.html
    http://www.vupen.com/english/advisories/2008/0998/references
    http://www.vupen.com/english/advisories/2008/1793/references
    https://exchange.xforce.ibmcloud.com/vulnerabilities/41458

    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