REDHAT-BUG-2489233: Medium severity Mozilla Firefox vulnerability
Published Jun 16, 2026
·Updated
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12.
Affected Software
2 affected components
Mozilla Firefox
Mozilla Firefox ESR
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Firefoxto a version that resolves this vulnerability.Fixed in 152 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 140.12
Event History
Jun 16, 2026
Data Sourced
via Red Hat·02:02 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of REDHAT-BUG-2489233?
The severity of REDHAT-BUG-2489233 is medium with a risk score of 4.
2
What software is affected by REDHAT-BUG-2489233?
The affected software includes Mozilla Firefox and Mozilla Firefox ESR.
3
How do I fix REDHAT-BUG-2489233?
To fix REDHAT-BUG-2489233, upgrade to Firefox 152 or Firefox ESR 140.12.
4
When was REDHAT-BUG-2489233 published?
REDHAT-BUG-2489233 was published on June 16, 2026.
5
What type of vulnerability is REDHAT-BUG-2489233?
REDHAT-BUG-2489233 is a memory safety bug.