CVE-2021-33595

Name: CVE-2021-33595
Creator: NVD / NIST
Published: 2021-08-11T11:15:09.203+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.5/10EPSS 1.07%

Last modified Jun 17, 2026

CVE-2021-33595 is a low-severity vulnerability rated 3.5/10 on the CVSS scale. A address bar spoofing vulnerability was discovered in Safe Browser for iOS. Showing the legitimate URL in the address bar while loading the content from other domain. EPSS estimates a 1.07% chance of exploitation in the next 30 days.

Description

A address bar spoofing vulnerability was discovered in Safe Browser for iOS. 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. A remote attacker can leverage this to perform address bar spoofing attack.

Metrics

CVSS 3.1

3.5/10

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

EPSS Probability

1.07%

60.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
F-Secure	Safe	< 18.4.272901

References

https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fameVendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisoriesVendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33595Vendor Advisory
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fameVendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisoriesVendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33595Vendor Advisory

Timeline

Published: Aug 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33595?

How severe is CVE-2021-33595?

CVE-2021-33595 has a CVSS score of 3.5/10 (LOW severity). The EPSS model estimates a 1.07% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33595?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-33595?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST