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TI-2019-08792 Aliases CVE-2019-11735GHSA-qrhm-66h9-79gh

Out-of-bounds write in Mozilla Firefox

Priority MEDIUM 40CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 1 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

Mozilla developers and community members reported memory safety bugs present in Firefox 68 and Firefox ESR 68. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

Why it matters now

EPSS 0.01179 67th percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 69Firefox ESR (Mozilla): 68.1Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 6969Patch availableCNA
MozillaFirefox ESRbefore 68.168.1Patch availableCNA
  • Firefox VendorMozilla Affected before 69 Fixed in 69 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 68.1 Fixed in 68.1 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 69.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 68.1.0VulnerableMozilla
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*15.0VulnerableopenSUSE
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*15.1VulnerableopenSUSE
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 69.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 68.1.0 Vulnerable ·Mozilla
  • cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* Versions 15.0 Vulnerable ·openSUSE
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 69
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 68.1

Red Hat 1 advisory

  • RHSA-2019:2663 Released 2019-09-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-68.1.0-1.el8_0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 69

    12 records Highest priority Priority MEDIUM 3 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2019-08791 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 45
    • TI-2019-08808 Logging-related command line parameters are not properly sanitized when Firefox is…Priority MEDIUM 40
    • TI-2019-08810 The Firefox installer allows Firefox to be installed to a custom user writable location…Priority LOW 33
    Show all 12 records →
  • Release ·

    Mozilla Firefox ESR 68.1

    8 records Highest priority Priority MEDIUM 2 MEDIUM, 6 LOW

    Other records, highest priority first

    • TI-2019-08808 Logging-related command line parameters are not properly sanitized when Firefox is…Priority MEDIUM 40
    • TI-2019-08807 Type confusion in Mozilla FirefoxPriority LOW 31
    • TI-2019-08805 WebRTC in Firefox will honor persisted permissions given to sites for access to…Priority LOW 31
    Show all 8 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2019:2663
Not affected: 2 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-11735
  2. 2026-10-03 Alias added: GHSA-qrhm-66h9-79gh

References

Advisory 5

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences