CVE-2024-1546: Debian Linux

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

When storing and re-accessing data on a networking channel, the length of buffers may have been confused, resulting in an out-of-bounds memory read. This vulnerability affects Firefox < 123, Firefox ESR < 115.8, and Thunderbird < 115.8.

Affected products

• Debian Debian Linux: version 10.0 only
• Mozilla Firefox: before 115.8.0 (fixed in 115.8.0); before 123.0 (fixed in 123.0)
• Mozilla Thunderbird: before 115.8.0 (fixed in 115.8.0)

Published 2024-02-20. Last modified 2026-06-17.