Input validation error in Mozilla products - CVE-2026-92014

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Main Vulnerability Database Vulnerabilities #VU150041

Input validation error in Mozilla products - CVE-2026-92014

Published: September 15, 2026


Vulnerability identifier: #VU150041
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-92014
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to escalate privileges.

The vulnerability exists due to incorrect boundary conditions in the Graphics component when rendering web content. A remote attacker can trick the victim into visiting a specially crafted website to escalate privileges.

User interaction is required to visit the crafted website.


Affected software

Mozilla Firefox
Firefox ESR
Firefox for Android
Debian Linux
Anolis OS
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
openEuler
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
firefox
firefox-debugsource
firefox-debuginfo
firefox (Red Hat package)
firefox-esr (Debian package)

How to mitigate CVE-2026-92014

Install security update from vendor's website.

Mozilla Firefox - update to 156.0
Firefox for Android - update to 156.0
Firefox ESR - addressed in versions 115.41.0, 140.16.0, 153.3.0
firefox - addressed in versions 140.16.0-1, 140.17.0-1.0.1
firefox-debugsource - update to 140.16.0-1
firefox - update to 140.16.0-1
firefox-debuginfo - update to 140.16.0-1
firefox (Red Hat package) - addressed in versions 140.16.0-1.el7_9, 140.16.0-1.el8_4, 140.16.0-1.el8_6, 140.16.0-1.el8_8, 140.16.0-1.el8_10, 140.16.0-1.el9_2, 140.16.0-1.el9_4, 140.16.0-1.el9_6, 140.16.0-1.el10_0, 140.16.0-1.el10_2
firefox-esr (Debian package) - update to 140.16.0esr-1~deb13u1

External References

Related Security Bulletins