Memory Safety Vulnerabilities in Firefox and Thunderbird from Mozilla
CVE-2025-10537
Currently unrated
What is CVE-2025-10537?
Mozilla Firefox and Thunderbird have been found to contain memory safety bugs in versions 140.2 of their ESR line and version 142. These vulnerabilities exhibit signs of memory corruption, raising concerns about their potential exploitation for executing arbitrary code. Specifically, Firefox versions below 143 and Firefox ESR versions below 140.3 are impacted. Users are advised to update to the latest versions to mitigate these risks and enhance security.
Affected Version(s)
Firefox < 143
Firefox ESR < 140.3