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Vulnerability record · CVE-2005-2270 · published 13 July 2005

CVE-2005-2270: Mozilla firefox vulnerability

Mozilla · Firefox

Firefox before 1.0.5 and Mozilla before 1.7.9 does not properly clone base objects, which allows remote attackers to execute arbitrary code by navigating the prototype chain to reach a privileged object.

7.5 CVSS 2.0 High EPSS 6.0% · top 7.0%
7.5CVSS 2.0 base score
6.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
50References, 8 tagged exploit
16 Jun 2026Last modified by NVD

Description

Firefox before 1.0.5 and Mozilla before 1.7.9 does not properly clone base objects, which allows remote attackers to execute arbitrary code by navigating the prototype chain to reach a privileged object.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/16043
http://secunia.com/advisories/16059
http://secunia.com/advisories/19823
http://securitytracker.com/id?1014470
http://www.ciac.org/ciac/bulletins/p-252.shtml
http://www.debian.org/security/2005/dsa-810
http://www.kb.cert.org/vuls/id/652366 US Government Resource
http://www.mozilla.org/security/announce/mfsa2005-56.html PatchVendor Advisory
http://www.novell.com/linux/security/advisories/2005_18_sr.html
http://www.novell.com/linux/security/advisories/2005_45_mozilla.html
http://www.novell.com/linux/security/advisories/2006_04_25.html
http://www.redhat.com/support/errata/RHSA-2005-586.html
http://www.redhat.com/support/errata/RHSA-2005-587.html
http://www.redhat.com/support/errata/RHSA-2005-601.html
http://www.securityfocus.com/bid/14242
http://www.vupen.com/english/advisories/2005/1075
https://bugzilla.mozilla.org/show_bug.cgi?id=294795 ExploitVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=294799 ExploitVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=295011 ExploitVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=296397 ExploitVendor Advisory
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=160202
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100003
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11751
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A550
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A817
http://secunia.com/advisories/16043
http://secunia.com/advisories/16059
http://secunia.com/advisories/19823
http://securitytracker.com/id?1014470
http://www.ciac.org/ciac/bulletins/p-252.shtml
http://www.debian.org/security/2005/dsa-810
http://www.kb.cert.org/vuls/id/652366 US Government Resource
http://www.mozilla.org/security/announce/mfsa2005-56.html PatchVendor Advisory
http://www.novell.com/linux/security/advisories/2005_18_sr.html
http://www.novell.com/linux/security/advisories/2005_45_mozilla.html
http://www.novell.com/linux/security/advisories/2006_04_25.html
http://www.redhat.com/support/errata/RHSA-2005-586.html
http://www.redhat.com/support/errata/RHSA-2005-587.html
http://www.redhat.com/support/errata/RHSA-2005-601.html
http://www.securityfocus.com/bid/14242

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2005-2270), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.