CVE-2021-40834

User interface Spoofing in F-Secure SAFE browser for Android

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.

Remediation

Solution:

  • FIX - Upgrade to version 18.5.x which is available in Google play.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.14%
Vendor Advisory f-secure.com Vendor Advisory f-secure.com
Affected: F-Secure F-Secure Mobile Security
Published at:
Updated at:

References

Link Tags
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame vendor advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40834 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-40834?
CVE-2021-40834 has been scored as a medium severity vulnerability.
How to fix CVE-2021-40834?
To fix CVE-2021-40834: FIX - Upgrade to version 18.5.x which is available in Google play.
Is CVE-2021-40834 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-40834 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-40834?
CVE-2021-40834 affects F-Secure F-Secure Mobile Security.
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