Is CVE-2013-6671 being actively exploited?

CVE-2013-6671 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-6671?

CVE-2013-6671 has a CVSS 3.1 base score of 9.8 (CRITICAL).

CVE-2013-6671

CRITICAL · CVSS 9.8EPSS 11.1%EU EUVD

The nsGfxScrollFrameInner::IsLTR function in Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 allows remote attackers to execute arbitrary code via crafted use of JavaScript code for ordered list elements.

Key facts

CVSS score: 9.8 (v3.1)
Severity: CRITICAL
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-94
EPSS score: 11.1% (96th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-6473)
Published: December 11, 2013
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-6473 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
fedoraproject / fedora
fedoraproject / fedora
fedoraproject / fedora
mozilla / firefox
mozilla / seamonkey
mozilla / thunderbird
opensuse / opensuse
opensuse / opensuse
opensuse / opensuse
redhat / enterprise linux desktop
redhat / enterprise linux desktop
redhat / enterprise linux eus
redhat / enterprise linux server
redhat / enterprise linux server
redhat / enterprise linux server aus
redhat / enterprise linux server eus
redhat / enterprise linux server tus
redhat / enterprise linux workstation
redhat / enterprise linux workstation
suse / suse linux enterprise desktop
suse / suse linux enterprise server
suse / suse linux enterprise server
suse / suse linux enterprise software development kit

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical

References

http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123437.html(Mailing List, Third Party Advisory)
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124108.html(Mailing List, Third Party Advisory)
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124257.html(Mailing List, Third Party Advisory)
http://lists.fedoraproject.org/pipermail/package-announce/2014-January/125470.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00010.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2013-12/msg00085.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2013-12/msg00086.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2013-12/msg00087.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2013-12/msg00119.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2013-12/msg00120.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2013-12/msg00121.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2014-01/msg00002.html(Mailing List, Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2013-1812.html(Third Party Advisory)
http://www.mozilla.org/security/announce/2013/mfsa2013-111.html(Vendor Advisory)
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html(Third Party Advisory)
http://www.securityfocus.com/bid/64212(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1029470(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1029476(Third Party Advisory, VDB Entry)
http://www.ubuntu.com/usn/USN-2052-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2053-1(Third Party Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=930281(Exploit, Issue Tracking, Vendor Advisory)
https://security.gentoo.org/glsa/201504-01(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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