Input validation error in Mozilla products - CVE-2026-92035

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Main Vulnerability Database Vulnerabilities #VU150061

Input validation error in Mozilla products - CVE-2026-92035

Published: September 15, 2026 / Updated: September 29, 2026


Vulnerability identifier: #VU150061
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-92035
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to escape the sandbox.

The vulnerability exists due to incorrect boundary conditions in the Graphics component when processing input. A remote attacker can process input to escape the sandbox.


Affected software

Firefox ESR
Mozilla Firefox
Firefox for Android
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
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
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Desktop Applications Module
openSUSE Leap
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
firefox (Red Hat package)
thunderbird (Red Hat package)
MozillaFirefox-devel
MozillaFirefox-debugsource
MozillaFirefox
MozillaFirefox-debuginfo
MozillaFirefox-translations-common
MozillaFirefox-branding-upstream
MozillaFirefox-translations-other

How to mitigate CVE-2026-92035

Install security update from vendor's website.

Firefox ESR - addressed in versions 115.42.0, 140.17.0, 153.3.0
Mozilla Firefox - update to 156.0
Firefox for Android - update to 156.0
firefox (Red Hat package) - addressed in versions 140.17.0-1.el7_9, 140.17.0-1.el8_4, 140.17.0-1.el8_6, 140.17.0-1.el8_8, 140.17.0-1.el8_10, 140.17.0-1.el9_2, 140.17.0-1.el9_4, 140.17.0-1.el9_6, 140.17.0-1.el10_0, 140.17.0-1.el10_2
thunderbird (Red Hat package) - addressed in versions 140.17.0-1.el8_6, 140.17.0-1.el8_8, 140.17.0-1.el8_10
MozillaFirefox-devel - addressed in versions 153.3.0-118.8.1, 153.3.0-150400.157.8.1
MozillaFirefox-debugsource - addressed in versions 153.3.0-118.8.1, 153.3.0-150400.157.8.1
MozillaFirefox - addressed in versions 153.3.0-118.8.1, 153.3.0-150400.157.8.1
MozillaFirefox-debuginfo - addressed in versions 153.3.0-118.8.1, 153.3.0-150400.157.8.1
MozillaFirefox-translations-common - addressed in versions 153.3.0-118.8.1, 153.3.0-150400.157.8.1
MozillaFirefox-branding-upstream - update to 153.3.0-150400.157.8.1
MozillaFirefox-translations-other - update to 153.3.0-150400.157.8.1

External References

Related Security Bulletins