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CVE-2019-11716

23
FAUCET Score

CVE-2019-11716 describes a vulnerability in Mozilla Firefox versions prior to 68 where the window.globalThis object was not enumerable until explicitly accessed by script. This oversight could allow sandbox bypasses in websites that rely on enumerating and freezing the window object for security. With a CVSS score of 8.3 (High), this vulnerability has a network attack vector, low attack complexity, and could lead to low impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 68CPE match
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 68.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.3HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.35%
Probability of exploitation in next 30 days
EPSS Percentile
68.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0135 is in the 49th percentile among its peer group of 51,553 CVEs.

Social Chatter

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

No media coverage found for this CVE.

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

Remediation

Vendor Patches (4)

mozillavendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: firefox

Vendor Advisories (1)

redhatCVE-2019-11716Moderate

Mozilla: globalThis not enumerable until accessed

Jul 9, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-10/msg00009.html
lists.opensuse.org / opensuse-security-announce/2019-10/msg00010.html
lists.opensuse.org / opensuse-security-announce/2019-10/msg00011.html
lists.opensuse.org / opensuse-security-announce/2019-10/msg00017.html
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions RequiredVendor Advisory
security.gentoo.org / glsa/201908-12
mozilla.org / security/advisories/mfsa2019-21
Vendor Advisory