CVE-2013-1678: Mozilla Firefox

High severity, CVSS 10.0. EPSS: 5.5% chance of exploitation in the next 30 days.

The _cairo_xlib_surface_add_glyph function in Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 allows remote attackers to execute arbitrary code or cause a denial of service (invalid write operation) via unspecified vectors.

Affected products

• Mozilla Firefox: up to and including 20.0.1; version 19.0 only; version 19.0.1 only; version 19.0.2 only; version 20.0 only; version 17.0 only; …
• Mozilla Thunderbird: up to and including 17.0.5; version 17.0 only; version 17.0.1 only; version 17.0.2 only; version 17.0.3 only; version 17.0.4 only
• Mozilla Thunderbird ESR: version 17.0 only; version 17.0.1 only; version 17.0.2 only; version 17.0.3 only; version 17.0.4 only; version 17.0.5 only

Published 2013-05-16. Last modified 2026-06-16.