CVE-2005-2270

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2005-07-13 · updated 2026-06-16

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.

Affected products

Mozilla Firefox: 0.8, 0.9, 0.9-rc, 0.9.1, 0.9.2, 0.9.3 (+7)
Mozilla: 1.3, 1.4, 1.4-alpha, 1.4.1, 1.5, 1.5-alpha (+19)

References

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
http://www.mozilla.org/security/announce/mfsa2005-56.html
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

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