CVE-2012-3973

Severity: high (CVSS 7.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-08-29 · updated 2026-06-16
Weakness: CWE-264

Description

The debugger in the developer-tools subsystem in Mozilla Firefox before 15.0, when remote debugging is disabled, does not properly restrict access to the remote-debugging service, which allows remote attackers to execute arbitrary code by leveraging the presence of the HTTPMonitor extension and connecting to that service through the HTTPMonitor port.

Affected products

Mozilla Firefox: through 14.0; 1.0, 1.0-preview_release, 1.0.1, 1.0.2, 1.0.3, 1.0.4 (+140)

References

http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00014.html
http://osvdb.org/85005
http://www.mozilla.org/security/announce/2012/mfsa2012-66.html
http://www.securityfocus.com/bid/55308
http://www.ubuntu.com/usn/USN-1548-1
http://www.ubuntu.com/usn/USN-1548-2
https://bugzilla.mozilla.org/show_bug.cgi?id=757128
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17039
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.html

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