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CVE-2014-8634

20
FAUCET Score

CVE-2014-8634 describes multiple unspecified vulnerabilities in the browser engine of Mozilla Firefox (before 35.0), Firefox ESR (before 31.4), Thunderbird (before 31.4), and SeaMonkey (before 2.32). These vulnerabilities carry a CVSS score of 7.5, indicating a high severity, as they can be exploited remotely with low complexity to cause a denial of service (memory corruption and application crash) or potentially execute arbitrary code. While no public exploit code (Metasploit, Nuclei, ExploitDB) is available and it is not listed in the KEV catalog, the vulnerability has garnered some community discussion and media coverage, suggesting awareness of its potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
31.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:31.0:*:*:*:*:*:*:*
31.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:31.1.0:*:*:*:*:*:*:*
31.1.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:31.1.1:*:*:*:*:*:*:*
31.3.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:31.3.0:*:*:*:*:*:*:*
31.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox_esr:31.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.86%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0386 is in the 81st percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:31.4.0-1.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:31.4.0-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:31.4.0-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: xulrunner-0:31.4.0-1.el7_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:31.4.0-1.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:31.4.0-1.el7_0
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2014-8634Critical

Mozilla: Miscellaneous memory safety hazards (rv:31.4) (MFSA 2015-01)

Jan 13, 2015

References

linux.oracle.com / errata/ELSA-2015-0046.html
linux.oracle.com / errata/ELSA-2015-0047.html
lists.opensuse.org / opensuse-security-announce/2015-01/msg00014.html
lists.opensuse.org / opensuse-security-announce/2015-01/msg00032.html
lists.opensuse.org / opensuse-security-announce/2015-01/msg00033.html
lists.opensuse.org / opensuse-security-announce/2015-01/msg00036.html
lists.opensuse.org / opensuse-security-announce/2015-02/msg00002.html
lists.opensuse.org / opensuse-security-announce/2015-07/msg00031.html
lists.opensuse.org / opensuse-updates/2015-01/msg00071.html
rhn.redhat.com / errata/RHSA-2015-0046.html
rhn.redhat.com / errata/RHSA-2015-0047.html
bugzilla.mozilla.org / show_bug.cgi
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/62237
secunia.com / advisories/62242
secunia.com / advisories/62250
secunia.com / advisories/62253
secunia.com / advisories/62259
secunia.com / advisories/62273
secunia.com / advisories/62274
secunia.com / advisories/62283
secunia.com / advisories/62293
secunia.com / advisories/62304
secunia.com / advisories/62313
secunia.com / advisories/62315
secunia.com / advisories/62316
secunia.com / advisories/62418
secunia.com / advisories/62446
secunia.com / advisories/62657
secunia.com / advisories/62790
exchange.xforce.ibmcloud.com / vulnerabilities/99955
security.gentoo.org / glsa/201504-01
debian.org / security/2015/dsa-3127
debian.org / security/2015/dsa-3132
mozilla.org / security/announce/2014/mfsa2015-01.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2015-2511959.html
securityfocus.com / bid/72049
securitytracker.com / id/1031533
securitytracker.com / id/1031534
ubuntu.com / usn/USN-2460-1