CVE-2025-0241 is a memory corruption vulnerability in Firefox's JavaScript text segmentation functionality. When processing specially crafted text, the segmentation process could corrupt memory, potentially leading to a crash that might be exploitable. This issue affects Firefox versions prior to 134 and Firefox ESR versions prior to 128.6. The vulnerability has a high severity rating with a CVSS score of 7.7. Mozilla has addressed this vulnerability in Firefox 134 and Firefox ESR 128.6.