REDHAT-BUG-2503497: Medium severity Mozilla Firefox vulnerability
Published Jul 21, 2026
·Updated
Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.
Affected Software
1 affected component
Mozilla Firefox<153, <140.13
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Mozilla Firefoxto a version that resolves this vulnerability.Fixed in 153 - Upgrade
Upgrade
Mozilla Firefox ESRto a version that resolves this vulnerability.Fixed in 140.13
Event History
Jul 21, 2026
Data Sourced
via Red Hat·01:04 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of REDHAT-BUG-2503497?
The severity of REDHAT-BUG-2503497 is medium, rated at 4.
2
How do I fix REDHAT-BUG-2503497?
To fix REDHAT-BUG-2503497, update to Firefox version 153 or Firefox ESR version 140.13 or later.
3
What type of vulnerability is REDHAT-BUG-2503497?
REDHAT-BUG-2503497 is a privilege escalation vulnerability in the DOM navigation component.
4
When was REDHAT-BUG-2503497 published?
REDHAT-BUG-2503497 was published on July 21, 2026.
5
Which software is affected by REDHAT-BUG-2503497?
REDHAT-BUG-2503497 affects Mozilla Firefox.