CVE-2011-3647

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-11-09 · updated 2026-06-16
Weakness: CWE-20

Description

The JSSubScriptLoader in Mozilla Firefox before 3.6.24 and Thunderbird before 3.1.6 does not properly handle XPCNativeWrappers during calls to the loadSubScript method in an add-on, which makes it easier for remote attackers to gain privileges via a crafted web site that leverages certain unwrapping behavior, a related issue to CVE-2011-3004.

Affected products

Mozilla Firefox: through 3.6.23; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+122)
Mozilla Thunderbird: through 3.1.5; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+79)

References

http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00020.html
http://www.mozilla.org/security/announce/2011/mfsa2011-46.html
http://www.redhat.com/support/errata/RHSA-2011-1439.html
https://bugzilla.mozilla.org/show_bug.cgi?id=680880
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13550
http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00020.html
http://www.mozilla.org/security/announce/2011/mfsa2011-46.html
http://www.redhat.com/support/errata/RHSA-2011-1439.html
https://bugzilla.mozilla.org/show_bug.cgi?id=680880
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13550

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