What is the severity of CVE-2021-33596?

The severity of CVE-2021-33596 is medium with a score of 4.1.

How does CVE-2021-33596 work?

CVE-2021-33596 allows an attacker to display a legitimate URL in the address bar while loading content from another domain, tricking users into believing it is from a legitimate source.

What software is affected by CVE-2021-33596?

F-Secure Safe version 18.4.272901 on iPhone OS is affected by CVE-2021-33596.

How can CVE-2021-33596 be exploited?

Exploiting CVE-2021-33596 requires the user to click on a specially crafted URL that appears legitimate but contains a malicious payload.

Are there any references available for CVE-2021-33596?

Yes, you can find references for CVE-2021-33596 at the following links: 1. [F-Secure Vulnerability Reward Program](https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame) 2. [F-Secure Security Advisories](https://www.f-secure.com/en/business/support-and-downloads/security-advisories) 3. [CVE-2021-33596 Security Advisory](https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33596)

Vulnerability/
CVE-2021-33596

medium

4.1

CWE

1021

5/8/2021

3/8/2024

CVE-2021-33596: Fake Apple login prompt in F-Secure SAFE browser for iOS

First published: Thu Aug 05 2021(Updated: )

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.

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

Affected Software	Affected Version	How to fix
F-secure Safe	<18.4.272901

Remedy

Upgrade to version 18.4.x or newer from the App Store

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-33596?
The severity of CVE-2021-33596 is medium with a score of 4.1.
How does CVE-2021-33596 work?
CVE-2021-33596 allows an attacker to display a legitimate URL in the address bar while loading content from another domain, tricking users into believing it is from a legitimate source.
What software is affected by CVE-2021-33596?
F-Secure Safe version 18.4.272901 on iPhone OS is affected by CVE-2021-33596.
How can CVE-2021-33596 be exploited?
Exploiting CVE-2021-33596 requires the user to click on a specially crafted URL that appears legitimate but contains a malicious payload.
Are there any references available for CVE-2021-33596?
Yes, you can find references for CVE-2021-33596 at the following links: 1. [F-Secure Vulnerability Reward Program](https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame) 2. [F-Secure Security Advisories](https://www.f-secure.com/en/business/support-and-downloads/security-advisories) 3. [CVE-2021-33596 Security Advisory](https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33596)

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canonical/f-secure safe

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