Question: What is CVE-2025-1020?
Answer: CVE-2025-1020 is a vulnerability classified as critical with a CVSS score of 9.8. It falls under CWE-787, CWE-787 and affects the system as follows: Memory safety bugs present in Firefox 134 and Thunderbird 134. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 135 and Thunderbird < 135.