Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2019-11752

27
FAUCET Score

CVE-2019-11752 is a use-after-free vulnerability in Mozilla Firefox and Thunderbird versions prior to 69 and 68.1 respectively, arising from an issue in IndexedDB key value handling. This flaw carries a high CVSS score of 8.8, indicating a network-based attack with low complexity that could lead to high impact on confidentiality, integrity, and availability if a user is tricked into interacting with a malicious site. While no public exploit code or active exploitation has been observed, the vulnerability has garnered some community discussion and media coverage, suggesting awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
< 60.9.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 69.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
>= 68.0, < 68.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
< 60.9.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
>= 68.0, < 68.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

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
2.16%
Probability of exploitation in next 30 days
EPSS Percentile
80.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0216 is in the 79th 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 (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:60.9.0-1.el7_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:60.9.0-1.el6_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:60.9.0-1.el6_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: thunderbird-0:60.9.0-2.el8_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:60.9.0-1.el7_7
View patch
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-2019-11752Important

Mozilla: Use-after-free while extracting a key value in IndexedDB

Sep 3, 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/201911-07
usn.ubuntu.com / 4150-1
mozilla.org / security/advisories/mfsa2019-25
Vendor Advisory
mozilla.org / security/advisories/mfsa2019-26
Vendor Advisory
mozilla.org / security/advisories/mfsa2019-27
Vendor Advisory
mozilla.org / security/advisories/mfsa2019-29
Vendor Advisory
mozilla.org / security/advisories/mfsa2019-30
Vendor Advisory