CVE-2012-3994

Name: CVE-2012-3994
Creator: NVD / NIST
Published: 2012-10-10T17:55:02.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.39%

Last modified Jun 16, 2026

CVE-2012-3994 is a vulnerability of currently unknown severity. Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 allow remote attackers to conduct cross-site scripting (XSS) attacks via a binary plugin that uses Object.defineProperty to shadow the top object, and leverages the relationship between top.location and the location property.. EPSS estimates a 2.39% chance of exploitation in the next 30 days.

Description

Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 allow remote attackers to conduct cross-site scripting (XSS) attacks via a binary plugin that uses Object.defineProperty to shadow the top object, and leverages the relationship between top.location and the location property.

Metrics

EPSS Probability

2.39%

81.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions	Update
Mozilla	Firefox	< 10.0.8	—
Mozilla	Thunderbird Esr	< 10.0.8	—
Mozilla	Firefox	< 16.0	—
Mozilla	Thunderbird	< 16.0	—
Mozilla	Seamonkey	< 2.13	—
Suse	Linux Enterprise Desktop	10	Sp4
Suse	Linux Enterprise Desktop	11	Sp2
Suse	Linux Enterprise Sdk	10	Sp4
Suse	Linux Enterprise Server	10	Sp4
Suse	Linux Enterprise Server	11	Sp2
Canonical	Ubuntu Linux	10.04	—
Canonical	Ubuntu Linux	11.04	—
Canonical	Ubuntu Linux	11.10	—
Canonical	Ubuntu Linux	12.04	—
Redhat	Enterprise Linux Desktop	5.0	—
Redhat	Enterprise Linux Desktop	6.0	—
Redhat	Enterprise Linux Eus	6.3	—
Redhat	Enterprise Linux Server	5.0	—
Redhat	Enterprise Linux Server	6.0	—
Redhat	Enterprise Linux Workstation	5.0	—
Redhat	Enterprise Linux Workstation	6.0	—

References

http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.htmlThird Party Advisory
http://osvdb.org/86110Broken Link
http://rhn.redhat.com/errata/RHSA-2012-1351.htmlThird Party Advisory
http://secunia.com/advisories/50856Third Party Advisory
http://secunia.com/advisories/50892Third Party Advisory
http://secunia.com/advisories/50904Third Party Advisory
http://secunia.com/advisories/50935Third Party Advisory
http://secunia.com/advisories/50936Third Party Advisory
http://secunia.com/advisories/50984Third Party Advisory
http://secunia.com/advisories/55318Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2012:163Third Party Advisory
http://www.mozilla.org/security/announce/2012/mfsa2012-82.htmlVendor Advisory
http://www.securityfocus.com/bid/56118Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-1611-1Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=765527Issue Tracking, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16798Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.htmlThird Party Advisory
http://osvdb.org/86110Broken Link
http://rhn.redhat.com/errata/RHSA-2012-1351.htmlThird Party Advisory
http://secunia.com/advisories/50856Third Party Advisory
http://secunia.com/advisories/50892Third Party Advisory
http://secunia.com/advisories/50904Third Party Advisory
http://secunia.com/advisories/50935Third Party Advisory
http://secunia.com/advisories/50936Third Party Advisory
http://secunia.com/advisories/50984Third Party Advisory
http://secunia.com/advisories/55318Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2012:163Third Party Advisory
http://www.mozilla.org/security/announce/2012/mfsa2012-82.htmlVendor Advisory
http://www.securityfocus.com/bid/56118Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-1611-1Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=765527Issue Tracking, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16798Third Party Advisory

Timeline

Published: Oct 10, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-3994?

How severe is CVE-2012-3994?

Severity scoring for CVE-2012-3994 is pending analysis. The EPSS model estimates a 2.39% probability of exploitation in the next 30 days.

How do I fix CVE-2012-3994?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-3994?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST