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CVE-2019-11749

17
FAUCET Score

CVE-2019-11749 is a WebRTC vulnerability in Firefox versions prior to 69 and Firefox ESR prior to 68.1. Malicious web content can exploit the getUserMedia API to reveal camera device properties without user prompts, enabling potential user fingerprinting. This medium-severity vulnerability (CVSS 4.3) requires user interaction (UI:R) but has low impact on confidentiality (C:L) and no impact on integrity or availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion, despite some media coverage.

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:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.90%
Probability of exploitation in next 30 days
EPSS Percentile
55.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0090 is in the 67th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 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-2019-11749Moderate

Mozilla: Camera information available without prompting using getUserMedia

Sep 3, 2019

References

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
mozilla.org / security/advisories/mfsa2019-25
Vendor Advisory
mozilla.org / security/advisories/mfsa2019-26
Vendor Advisory