REDHAT-BUG-2479852: Low severity Mozilla Firefox vulnerability
Published May 19, 2026
·Updated
Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.
Affected Software
2 affected components
Mozilla Firefox<151
Mozilla Firefox ESR<140.11
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Firefoxto a version that resolves this vulnerability.Fixed in 151 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 140.11
Event History
May 19, 2026
Data Sourced
via Red Hat·02:02 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of REDHAT-BUG-2479852?
The severity of REDHAT-BUG-2479852 is low.
2
What does REDHAT-BUG-2479852 affect?
REDHAT-BUG-2479852 affects the Security component in Mozilla Firefox and Mozilla Firefox ESR.
3
How do I fix REDHAT-BUG-2479852?
To fix REDHAT-BUG-2479852, update to Firefox version 151 or Firefox ESR version 140.11.
4
What is the risk level associated with REDHAT-BUG-2479852?
The risk level associated with REDHAT-BUG-2479852 is rated at 5.
5
When was REDHAT-BUG-2479852 published?
REDHAT-BUG-2479852 was published on May 19, 2026.