REDHAT-BUG-2389575: Low severity Mozilla Firefox vulnerability

Published Aug 19, 2025
·
Updated

'Denial-of-service due to out-of-memory in the Graphics: WebRender component.' This vulnerability affects Firefox < 142, Firefox ESR < 140.2, Thunderbird < 142, and Thunderbird < 140.2.

Affected Software

4 affected components
Mozilla Firefox<142
Mozilla Firefox ESR<140.2
Mozilla Thunderbird<142
Mozilla Thunderbird<140.2

Event History

Aug 19, 2025
Data Sourced
via Red Hat·09:01 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2389575?

The severity of REDHAT-BUG-2389575 is high as it can lead to a denial-of-service due to out-of-memory conditions.

2

How do I fix REDHAT-BUG-2389575?

To fix REDHAT-BUG-2389575, update to Mozilla Firefox version 142 or later, Firefox ESR version 140.2 or later, or Mozilla Thunderbird version 142 or later.

3

Which software is affected by REDHAT-BUG-2389575?

REDHAT-BUG-2389575 affects Mozilla Firefox versions earlier than 142, Firefox ESR versions earlier than 140.2, and Mozilla Thunderbird versions earlier than 142.

4

What is the impact of REDHAT-BUG-2389575?

The impact of REDHAT-BUG-2389575 is that it can cause applications to crash or become unresponsive due to excessive memory usage.

5

Is there a workaround for REDHAT-BUG-2389575?

There are no officially recommended workarounds for REDHAT-BUG-2389575, so upgrading to the latest versions is essential.

Contact

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