REDHAT-BUG-2503463: Use After Free
Published Jul 21, 2026
·Updated
Use-after-free in the WebRTC: Audio/Video 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·01:03 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of REDHAT-BUG-2503463?
The severity of REDHAT-BUG-2503463 is rated as high with a score of 7.
2
How do I fix REDHAT-BUG-2503463?
To fix REDHAT-BUG-2503463, update to Firefox version 153 or Firefox ESR version 140.13.
3
What components are affected by REDHAT-BUG-2503463?
REDHAT-BUG-2503463 affects the WebRTC: Audio/Video component in Mozilla Firefox.
4
What type of vulnerability is REDHAT-BUG-2503463?
REDHAT-BUG-2503463 is categorized as a Use After Free vulnerability.
5
When was REDHAT-BUG-2503463 published?
REDHAT-BUG-2503463 was published on July 21, 2026.