Is CVE-2014-1478 being actively exploited?

CVE-2014-1478 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2014-1478?

CVE-2014-1478 has a CVSS 2.0 base score of 10.0 (HIGH).

CVE-2014-1478

HIGH · CVSS 10.0EPSS 6.9%EU EUVD

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 27.0 and SeaMonkey before 2.24 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to the MPostWriteBarrier class in js/src/jit/MIR.h and stack alignment in js/src/jit/AsmJS.cpp in OdinMonkey, and unknown other vectors.

Key facts

CVSS score: 10.0 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-787
EPSS score: 6.9% (94th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2014-1554)
Published: February 6, 2014
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-1554 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
mozilla / firefox
mozilla / seamonkey
opensuse / opensuse
opensuse / opensuse
opensuse / opensuse
oracle / solaris

References

http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00004.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00005.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00017.html(Mailing List, Third Party Advisory)
http://osvdb.org/102865(Broken Link)
http://secunia.com/advisories/56706(Broken Link)
http://secunia.com/advisories/56767(Broken Link)
http://secunia.com/advisories/56787(Broken Link)
http://secunia.com/advisories/56888(Broken Link)
http://secunia.com/advisories/56922(Broken Link)
http://www.mozilla.org/security/announce/2014/mfsa2014-01.html(Vendor Advisory)
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html(Third Party Advisory)
http://www.securityfocus.com/bid/65324(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1029717(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1029720(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1029721(Third Party Advisory, VDB Entry)
http://www.ubuntu.com/usn/USN-2102-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2102-2(Third Party Advisory)
https://8pecxstudios.com/?page_id=44080(Broken Link, URL Repurposed)
https://bugzilla.mozilla.org/show_bug.cgi?id=867597(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=911707(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=911845(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=916635(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=922603(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=924348(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=925308(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=932162(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=938431(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=939472(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=942152(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=942940(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=944278(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=944321(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=944851(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=945585(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=946733(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=950452(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=953373(Issue Tracking, Vendor Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/90900(Third Party Advisory, VDB Entry)
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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