CVE-2017-7778: Debian Linux

Critical severity, CVSS 9.8. EPSS: 5.2% chance of exploitation in the next 30 days.

A number of security vulnerabilities in the Graphite 2 library including out-of-bounds reads, buffer overflow reads and writes, and the use of uninitialized memory. These issues were addressed in Graphite 2 version 1.3.10. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Mozilla Firefox: before 52.2.0 (fixed in 52.2.0); before 54.0 (fixed in 54.0)
• Mozilla Thunderbird: before 52.2.0 (fixed in 52.2.0)
• Sil GRAPHITE2: before 1.3.10 (fixed in 1.3.10)

Published 2018-06-11. Last modified 2026-06-17.