Medium (4.3) in mozilla firefox. EPSS 0.8% chance of exploitation in the next 30 days.
Repeated calls to the history and location interfaces could have been used to hang the browser. This was addressed by introducing rate-limiting to these API calls. This vulnerability affects Firefox < 83.
Severity
CVSS 3.1
4.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
EPSS
0.8% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)