CVE-2019-11721: Mozilla Firefox

Medium severity, CVSS 6.5. EPSS: 1.4% chance of exploitation in the next 30 days.

The unicode latin 'kra' character can be used to spoof a standard 'k' character in the addressbar. This allows for domain spoofing attacks as do not display as punycode text, allowing for user confusion. This vulnerability affects Firefox < 68.

Affected products

• Mozilla Firefox: before 68.0 (fixed in 68.0)
• Opensuse Leap: version 15.0 only; version 15.1 only

Published 2019-07-23. Last modified 2026-06-17.