apple ipad-os CVE-2021-1879 vulnerability in Apple Products
Published on April 2, 2021

product logo product logo product logo
This issue was addressed by improved management of object lifetimes. This issue is fixed in iOS 12.5.2, iOS 14.4.2 and iPadOS 14.4.2, watchOS 7.3.3. Processing maliciously crafted web content may lead to universal cross site scripting. Apple is aware of a report that this issue may have been actively exploited..

Vendor Advisory Vendor Advisory Vendor Advisory NVD

Known Exploited Vulnerability

This Apple iOS Webkit Browser Engine XSS vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Processing maliciously crafted web content may lead to universal cross site scripting. Apple is aware of a report that this issue may have been actively exploited.

The following remediation steps are recommended / required by November 17, 2021: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2021-1879 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 2.8 out of four. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.

What is a XSS Vulnerability?

The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVE-2021-1879 has been classified to as a XSS vulnerability or weakness.


Products Associated with CVE-2021-1879

You can be notified by stack.watch whenever vulnerabilities like CVE-2021-1879 are published in these products:

Apple iPadOS
 
Apple iOS
 
Apple watchOS
 
Apple iPadOS
 

What versions are vulnerable to CVE-2021-1879?