CVE-2015-7221

Name: CVE-2015-7221
Creator: NVD / NIST
Published: 2015-12-16T11:59:19.37+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.51%

Last modified Jun 17, 2026

CVE-2015-7221 is a vulnerability of currently unknown severity. Buffer overflow in the nsDeque::GrowCapacity function in xpcom/glue/nsDeque.cpp in Mozilla Firefox before 43.0 might allow remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a deque size change.. EPSS estimates a 4.51% chance of exploitation in the next 30 days.

Description

Buffer overflow in the nsDeque::GrowCapacity function in xpcom/glue/nsDeque.cpp in Mozilla Firefox before 43.0 might allow remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a deque size change.

Metrics

EPSS Probability

4.51%

90.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	<= 42.0
Fedoraproject	Fedora	22
Fedoraproject	Fedora	23
Opensuse	Leap	42.1
Opensuse	Opensuse	13.1
Opensuse	Opensuse	13.2

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2015-12/msg00104.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.htmlThird Party Advisory
http://www.mozilla.org/security/announce/2015/mfsa2015-144.htmlVendor Advisory
http://www.securityfocus.com/bid/79280
http://www.securitytracker.com/id/1034426
http://www.ubuntu.com/usn/USN-2833-1
https://bugzilla.mozilla.org/show_bug.cgi?id=1199400Issue Tracking
https://hg.mozilla.org/mozilla-central/rev/7fd961937687Issue Tracking, Patch
https://security.gentoo.org/glsa/201512-10
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2015-12/msg00104.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.htmlThird Party Advisory
http://www.mozilla.org/security/announce/2015/mfsa2015-144.htmlVendor Advisory
http://www.securityfocus.com/bid/79280
http://www.securitytracker.com/id/1034426
http://www.ubuntu.com/usn/USN-2833-1
https://bugzilla.mozilla.org/show_bug.cgi?id=1199400Issue Tracking
https://hg.mozilla.org/mozilla-central/rev/7fd961937687Issue Tracking, Patch
https://security.gentoo.org/glsa/201512-10

Timeline

Published: Dec 16, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-7221?

How severe is CVE-2015-7221?

Severity scoring for CVE-2015-7221 is pending analysis. The EPSS model estimates a 4.51% probability of exploitation in the next 30 days.

How do I fix CVE-2015-7221?

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-2015-7221?

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

Scan your code now

Source: NVD / NIST