CVE-2024-7528: Mozilla Firefox

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Incorrect garbage collection interaction in IndexedDB could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.

Affected products

• Mozilla Firefox: before 129.0 (fixed in 129.0)
• Mozilla Firefox ESR: before 128.1.0 (fixed in 128.1.0)
• Mozilla Thunderbird: before 128.1.0 (fixed in 128.1.0)

Published 2024-08-06. Last modified 2026-06-17.