CVE-2019-17025: Canonical Ubuntu Linux

High severity, CVSS 8.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Mozilla developers reported memory safety bugs present in Firefox 71. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 72.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 19.04 only; version 19.10 only
• Mozilla Firefox: before 72.0 (fixed in 72.0)

Published 2020-01-08. Last modified 2026-06-17.