CVE-2021-33596: F-Secure Safe

Medium severity, CVSS 4.1. EPSS: 0.8% chance of exploitation in the next 30 days.

Showing the legitimate URL in the address bar while loading the content from other domain. This makes the user believe that the content is served by a legit domain. Exploiting the vulnerability requires the user to click on a specially crafted, seemingly legitimate URL containing an embedded malicious redirect while using F-Secure Safe Browser for iOS.

Affected products

• F-Secure Safe: before 18.4.272901 (fixed in 18.4.272901)

Published 2021-08-05. Last modified 2026-06-17.