CVE-2016-2818

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Published: 2016-06-13 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2016-2818 is rated High Risk (69.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.89%). Core evidence: EPSS rose +3.60% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-2818

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.29% 3.89% +3.60%
2 2026-05-13 0.40% 0.29% -0.11%
3 2026-01-14 0.40%

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-2818

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
8.6 6.4 [email protected]

Weakness enumeration for CVE-2016-2818

OS Trackers for CVE-2016-2818

vendor priority summary link
debian not yet assigned CVE-2016-2818 not yet assigned priority: Debian including 2 source packages (firefox, firefox-esr), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. https://security-tracker.debian.org/tracker/CVE-2016-2818
redhat critical https://access.redhat.com/security/cve/CVE-2016-2818
suse medium CVE-2016-2818 severity moderate: SUSE including 152 source package names (MozillaFirefox-102.11.0-150200.152.87.1, MozillaFirefox-115.10.0-150200.152.134.1, …), 441 product×package rows across 74 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-Basic-On-Demand, … (74 product lines)): Fixed 441. https://www.suse.com/security/cve/CVE-2016-2818/
ubuntu medium CVE-2016-2818 medium priority: Ubuntu including 2 source packages (firefox, thunderbird), 10 status rows across 5 suites (precise, trusty, upstream, wily, xenial): released 10. https://ubuntu.com/security/CVE-2016-2818

Affected software / configurations for CVE-2016-2818

Vendor Product Version Raw CPE
mozilla firefox 45.1.0 cpe:2.3:a:mozilla:firefox:45.1.0:*:*:*:*:*:*:*
mozilla firefox 45.1.1 cpe:2.3:a:mozilla:firefox:45.1.1:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 5.0 cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems 5.0 cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems 6.0 cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems 7.0 cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 7.2 cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_big_endian 5.0 cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_big_endian 6.0 cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_big_endian 7.0 cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_big_endian_eus 7.2 cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian 7.0 cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 7.2 cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_for_scientific_computing 6.0 cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 5.0 cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 5.0 cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
mozilla firefox <= 46.0.1 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
novell suse_linux_enterprise_software_development_kit 12.0 cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*
novell suse_linux_enterprise_software_development_kit 12.0 cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*
novell suse_package_hub_for_suse_linux_enterprise 12 cpe:2.3:a:novell:suse_package_hub_for_suse_linux_enterprise:12:*:*:*:*:*:*:*
novell suse_linux_enterprise_desktop 12.0 cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*
novell suse_linux_enterprise_desktop 12.0 cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*
novell suse_linux_enterprise_server 12.0 cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*
novell suse_linux_enterprise_server 12.0 cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*
opensuse leap 42.1 cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
opensuse opensuse 13.1 cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
opensuse opensuse 13.2 cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 15.10 cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

References for CVE-2016-2818

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00014.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00016.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00055.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00006.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00007.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00008.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3600 Third Party Advisory
http://www.debian.org/security/2016/dsa-3647
http://www.mozilla.org/security/announce/2016/mfsa2016-49.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.securityfocus.com/bid/91075
http://www.securitytracker.com/id/1036057 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2993-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3023-1
https://access.redhat.com/errata/RHSA-2016:1217 Third Party Advisory
https://access.redhat.com/errata/RHSA-2016:1392 Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1234147 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1256493 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1256739 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1256968 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1261230 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1261752 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1263384 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1264575 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1265577 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1267130 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1269729 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1273202 Issue Tracking Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1273701 Issue Tracking Permissions Required
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