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CVE-2016-2818

27
FAUCET Score

CVE-2016-2818 describes multiple unspecified memory corruption vulnerabilities within the browser engine of Mozilla Firefox versions prior to 47.0 and Firefox ESR 45.x before 45.2. These flaws affect various distributions including Canonical, Debian, and Red Hat. With a CVSS v3 score of 8.8 (HIGH), this vulnerability is remotely exploitable with low attack complexity, requiring user interaction. Successful exploitation could lead to a denial of service (application crash) or potentially arbitrary code execution, resulting in high impacts to confidentiality, integrity, and availability. Despite its high severity, CVE-2016-2818 is not listed in CISA's KEV catalog and there is no public exploit code available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage are minimal, suggesting limited active exploitation or widespread attention.

Impacted Technologies

VendorProductVersion(s)CPE
45.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:45.1.0:*:*:*:*:*:*:*
45.1.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:45.1.1:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.87%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0387 is in the 88th percentile among its peer group of 14,824 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:45.2.0-1.el6_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:45.2.0-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:45.2-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:45.2-1.el7_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:45.2-1.el6_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:45.2.0-1.el7_2
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-2818Critical

Mozilla: Miscellaneous memory safety hazards (rv:45.2) (MFSA 2016-49)

Jun 8, 2016

References

lists.opensuse.org / opensuse-security-announce/2016-06/msg00014.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00016.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00055.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-07/msg00006.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-07/msg00007.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-07/msg00008.html
Third Party Advisory
access.redhat.com / errata/RHSA-2016:1217
Third Party Advisory
access.redhat.com / errata/RHSA-2016:1392
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions Required
debian.org / security/2016/dsa-3600
Third Party Advisory
debian.org / security/2016/dsa-3647
mozilla.org / security/announce/2016/mfsa2016-49.html
Vendor Advisory
oracle.com / technetwork/topics/security/linuxbulletinapr2016-2952096.html
oracle.com / technetwork/topics/security/linuxbulletinjul2016-3090544.html
securityfocus.com / bid/91075
securitytracker.com / id/1036057
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2993-1
Third Party Advisory
ubuntu.com / usn/USN-3023-1