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CVE-2019-11735

27
FAUCET Score

CVE-2019-11735 is a memory safety vulnerability affecting Mozilla Firefox versions prior to 69 and Firefox ESR versions prior to 68.1, as well as several openSUSE products. This high-severity flaw (CVSS 8.8) is remotely exploitable with low attack complexity, requiring user interaction, and could lead to arbitrary code execution with high impact on confidentiality, integrity, and availability. While no public exploit code or active exploitation has been confirmed (not in KEV, no Metasploit/Nuclei/ExploitDB entries), it garnered some community discussion and media coverage at the time of disclosure.

Impacted Technologies

VendorProductVersion(s)CPE
< 69.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 68.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.18%
Probability of exploitation in next 30 days
EPSS Percentile
64.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0118 is in the 63rd percentile among its peer group of 14,875 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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: firefox-0:68.1.0-1.el8_0
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2019-11735Important

Mozilla: Memory safety bugs fixed in Firefox 69 and Firefox ESR 68.1

Sep 3, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-10/msg00011.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-10/msg00017.html
Mailing ListThird Party Advisory
bugzilla.mozilla.org / buglist.cgi
Issue TrackingNot ApplicableVendor Advisory
mozilla.org / security/advisories/mfsa2019-25
Vendor Advisory
mozilla.org / security/advisories/mfsa2019-26
Vendor Advisory