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CVE-2016-1973

23
FAUCET Score

CVE-2016-1973 describes a race condition vulnerability in the WebRTC implementation of Mozilla Firefox, affecting versions prior to 45.0, as well as Oracle Firefox and Linux distributions. This flaw could allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) through unspecified vectors. With a CVSS score of 8.8 (HIGH), the vulnerability is network-exploitable with low attack complexity, requiring user interaction, and carries high impacts on confidentiality, integrity, and availability. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available, with minimal community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
5.0CPE matchmatch criteria
cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:*
6CPE matchmatch criteria
cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*
7CPE matchmatch criteria
cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*
<= 44.0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

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
2.98%
Probability of exploitation in next 30 days
EPSS Percentile
85.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0298 is in the 85th percentile among its peer group of 14,824 CVEs.

Social Chatter

No social media mentions found for this CVE.

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-0:38.7.0-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:38.7.0-1.el6_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:38.7.0-1.el7_2
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-1973Important

Mozilla: Use-after-free in GetStaticInstance in WebRTC (MFSA 2016-33)

Mar 8, 2016

References

lists.opensuse.org / opensuse-security-announce/2016-03/msg00029.html
lists.opensuse.org / opensuse-security-announce/2016-03/msg00031.html
bugzilla.mozilla.org / show_bug.cgi
Issue Tracking
security.gentoo.org / glsa/201605-06
mozilla.org / security/announce/2016/mfsa2016-33.html
Vendor Advisory
oracle.com / technetwork/topics/security/linuxbulletinjan2016-2867209.html
Third Party Advisory
securitytracker.com / id/1035215
ubuntu.com / usn/USN-2917-1
ubuntu.com / usn/USN-2917-2
ubuntu.com / usn/USN-2917-3