REDHAT-BUG-2463481: High severity Mozilla Firefox ESR vulnerability
Memory safety bugs present in Firefox ESR 140.10.0, Thunderbird ESR 140.10.0, Firefox 150.0.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.1 and Firefox ESR 140.10.1.
Affected Software
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2463481?
The severity of REDHAT-BUG-2463481 is classified as high, with a score of 7.
What software is affected by REDHAT-BUG-2463481?
REDHAT-BUG-2463481 affects Mozilla Firefox ESR 140.10.0, Thunderbird ESR 140.10.0, Firefox 150.0.0, and Thunderbird 150.0.0.
How do I fix REDHAT-BUG-2463481?
To fix REDHAT-BUG-2463481, update your affected Mozilla Firefox or Thunderbird software to the latest available version.
What risks are associated with REDHAT-BUG-2463481?
The risks associated with REDHAT-BUG-2463481 include potential memory corruption which could be exploited to run arbitrary code.
When was REDHAT-BUG-2463481 published?
REDHAT-BUG-2463481 was published on April 28, 2026.