CVE-2021-40834

medium

Description

A user interface overlay vulnerability was discovered in F-secure SAFE Browser for Android. When user click on a specially crafted seemingly legitimate URL SAFE browser goes into full screen and hides the user interface. A remote attacker can leverage this to perform spoofing attack.

References

https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40834

https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame

Details

Source: Mitre, NVD

Published: 2021-12-10

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00205