JavaScript Property Modification Issue in Mozilla Firefox and Thunderbird
CVE-2025-11711
Currently unrated
Key Information:
- Vendor
Mozilla
- Vendor
- CVE Published:
- 14 October 2025
What is CVE-2025-11711?
A vulnerability exists in Mozilla's Firefox and Thunderbird that enables attackers to alter the values of JavaScript Object properties that should remain non-writable. This defect may lead to unexpected behavior in applications relying on predictable property states, potentially leading to further security issues.
Affected Version(s)
Firefox < 144
Firefox ESR < 115.29
Firefox ESR < 140.4