CVE Catalog
CVE-2026-12330
MediumCVSS 5.4Summary
Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.
Risk Assessment
Organizations may be exposed to security issues related to user data and potential attacks due to improper handling of international data.
Recommendation
It is recommended to update to the latest versions of Firefox ESR and Thunderbird to mitigate this vulnerability.
Original NVD description (English source)
Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.