CVE-2024-10459: Mozilla Firefox

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

An attacker could have caused a use-after-free when accessibility was enabled, leading to a potentially exploitable crash. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.

Affected products

• Mozilla Firefox: before 115.17 (fixed in 115.17); before 132.0 (fixed in 132.0); from 116.0, before 128.4.0 (fixed in 128.4.0)
• Mozilla Thunderbird: before 128.4.0 (fixed in 128.4.0); from 129.0, before 132.0 (fixed in 132.0)

Published 2024-10-29. Last modified 2026-06-17.