AUGUST 4, 2026
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Case File

CVE-2021-40835

MEDIUM · CVSS 4.6 EPSS 0.70%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-16 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.6. It may be remotely exploitable.

CVE
CVE-2021-40835
Severity
MEDIUM
CVSS
4.6
EPSS
0.70%

Original NVD Description

An URL Address bar spoofing vulnerability was discovered in Safe Browser for iOS. When user clicks on a specially crafted a malicious URL, if user does not carefully pay attention to url, user may be tricked to think content may be coming from a valid domain, while it comes from another. This is performed by using a very long username part of the url so that user cannot see the domain name. A remote attacker can leverage this to perform url address bar spoofing attack. The fix is, browser no longer shows the user name part in address bar.

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