CVE-2025-11719
BaseFortify
Publication date: 2025-10-14
Last updated on: 2026-04-13
Assigner: Mozilla Corporation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows | * |
| mozilla | thunderbird | to 140.0 (inc) |
| mozilla | firefox | From 60.9.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves the use of the native messaging API by web extensions on Windows in Firefox versions before 144 and Thunderbird versions before 144. It can cause crashes due to use-after-free memory corruption, which is a type of memory safety bug where the program accesses memory after it has been freed, potentially leading to instability or exploitation. [1]
How can this vulnerability impact me? :
The vulnerability can cause crashes in Firefox and Thunderbird, and because it involves memory corruption, it could potentially be exploited to execute arbitrary code remotely. This means an attacker could take control of the affected system or cause denial of service by crashing the application. [1]
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update Firefox and Thunderbird to version 144 or later, as the issue was fixed starting in Firefox 144 and Thunderbird 144. [1]