What is the vulnerability ID for this user interface overlay vulnerability in F-secure SAFE Browser for Android?

The vulnerability ID is CVE-2021-40834.

What is the severity of CVE-2021-40834?

The severity of CVE-2021-40834 is medium with a severity value of 4.3.

Which version of F-secure SAFE Browser for Android is affected by CVE-2021-40834?

Version 17.9 of F-secure SAFE Browser for Android is affected by CVE-2021-40834.

Where can I find more information about this vulnerability?

You can find more information about CVE-2021-40834 in the F-secure Vulnerability Reward Program Hall of Fame and the F-secure security advisories.

Vulnerability/
CVE-2021-40834

medium

4.3

CWE

1021

10/12/2021

4/8/2024

CVE-2021-40834: User interface Spoofing in F-Secure SAFE browser for Android

Q: How does the vulnerability in F-secure SAFE Browser for Android work?

When a user clicks on a specially crafted URL, the SAFE browser goes into full screen and hides the user interface, allowing a remote attacker to perform a spoofing attack.

First published: Fri Dec 10 2021(Updated: )

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.

Credit: cve-notifications-us@f-secure.com

Affected Software	Affected Version	How to fix
F-secure Safe	<=17.9

Remedy

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

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Reference Links

Frequently Asked Questions

What is the vulnerability ID for this user interface overlay vulnerability in F-secure SAFE Browser for Android?
The vulnerability ID is CVE-2021-40834.
What is the severity of CVE-2021-40834?
The severity of CVE-2021-40834 is medium with a severity value of 4.3.
How does the vulnerability in F-secure SAFE Browser for Android work?
When a user clicks on a specially crafted URL, the SAFE browser goes into full screen and hides the user interface, allowing a remote attacker to perform a spoofing attack.
Which version of F-secure SAFE Browser for Android is affected by CVE-2021-40834?
Version 17.9 of F-secure SAFE Browser for Android is affected by CVE-2021-40834.
Where can I find more information about this vulnerability?
You can find more information about CVE-2021-40834 in the F-secure Vulnerability Reward Program Hall of Fame and the F-secure security advisories.

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version/f-secure safe/17.9

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