CVE-2025-10527
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-09-16
Last updated on: 2026-04-13
Assigner: Mozilla Corporation
Description
Description
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
CVSS Scores
EPSS Scores
| Probability: | |
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mozilla | thunderbird | to 140.0 (inc) |
| mozilla | thunderbird | to 140.0 (inc) |
| mozilla | firefox | From 60.9.0 (exc) |
| mozilla | firefox | From 60.9.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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
How can this vulnerability impact me? :
This vulnerability has a CVSS v3.1 base score of 7.1, indicating it is of high severity. It affects Firefox versions below 143 and Thunderbird versions below 143, potentially allowing an attacker to impact confidentiality, integrity, and availability with network attack vector and low attack complexity, requiring user interaction. The exact impact details are not provided.
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