CVE-2026-16360
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
Memory safety bugs in Firefox ESR 115.37, Firefox ESR 140.12, and Firefox 152 may lead to memory corruption and potentially arbitrary code execution. Fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Risk Assessment
Risk of remote code execution, potentially leading to full system compromise.
Recommendation
Update Firefox to version 153 or later and Thunderbird to version 153 or later.
Original NVD description (English source)
Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. 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 was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.