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CVE-2016-2814

27
FAUCET Score

CVE-2016-2814 is a critical heap-based buffer overflow vulnerability in the libstagefright component of Mozilla Firefox, affecting versions before 46.0, Firefox ESR 38.x before 38.8, and Firefox ESR 45.x before 45.1. This flaw, rated 8.8 HIGH on CVSS, allows remote attackers to execute arbitrary code through crafted CENC offsets, requiring user interaction but with low attack complexity and high impact on confidentiality, integrity, and availability. While no public exploit code is readily available (Metasploit, Nuclei, ExploitDB), and it's not listed in CISA's KEV catalog, its high FAUCET Risk Score and mention in security media indicate its potential severity.

Impacted Technologies

VendorProductVersion(s)CPE
<= 45.0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
38.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:*
38.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:*
38.0.5CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:*
38.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.1.0:*:*:*:*:*:*:*

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
3.78%
Probability of exploitation in next 30 days
EPSS Percentile
88.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0378 is in the 88th percentile among its peer group of 14,855 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 (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:45.1.0-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:45.1.0-1.el6_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:45.1.0-1.el7_2
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-2814Important

Mozilla: Buffer overflow in libstagefright with CENC offsets (MFSA 2016-44)

Apr 26, 2016

References

lists.opensuse.org / opensuse-security-announce/2016-05/msg00005.html
lists.opensuse.org / opensuse-security-announce/2016-05/msg00023.html
lists.opensuse.org / opensuse-security-announce/2016-05/msg00054.html
lists.opensuse.org / opensuse-security-announce/2016-05/msg00057.html
lists.opensuse.org / opensuse-updates/2016-05/msg00038.html
rhn.redhat.com / errata/RHSA-2016-0695.html
bugzilla.mozilla.org / show_bug.cgi
security.gentoo.org / glsa/201701-15
debian.org / security/2016/dsa-3559
mozilla.org / security/announce/2016/mfsa2016-44.html
Vendor Advisory
oracle.com / technetwork/topics/security/linuxbulletinapr2016-2952096.html
securitytracker.com / id/1035692
ubuntu.com / usn/USN-2936-1
ubuntu.com / usn/USN-2936-2
ubuntu.com / usn/USN-2936-3