CVE-2024-3302: Mozilla Firefox

Low severity, CVSS 3.7. EPSS: 0.8% chance of exploitation in the next 30 days.

There was no limit to the number of HTTP/2 CONTINUATION frames that would be processed. A server could abuse this to create an Out of Memory condition in the browser. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.

Affected products

• Mozilla Firefox: before 115.10 (fixed in 115.10); before 125.0 (fixed in 125.0)
• Mozilla Thunderbird: up to and including 115.10

Published 2024-04-16. Last modified 2026-06-17.