CVE-2020-27925 : What You Need to Know

An issue in the handling of incoming calls in iOS and iPadOS versions less than 14.2 allowed users to answer two calls simultaneously without indication they have answered a second call.

Understanding CVE-2020-27925

This CVE relates to a vulnerability in the call handling functionality of iOS and iPadOS.

What is CVE-2020-27925?

CVE-2020-27925 is a vulnerability that enabled users to answer two calls at the same time without being notified that they had answered a second call.

The Impact of CVE-2020-27925

The vulnerability could lead to confusion and potential privacy breaches if users inadvertently answer multiple calls without realizing.

Technical Details of CVE-2020-27925

This section provides more technical insights into the vulnerability.

Vulnerability Description

The issue stemmed from a lack of proper state checks in the call handling process, allowing users to answer multiple calls simultaneously.

Affected Systems and Versions

Product: iOS and iPadOS
Vendor: Apple
Versions Affected: Less than 14.2

Exploitation Mechanism

The vulnerability could be exploited by initiating multiple incoming calls and answering them without being notified of the second call.

Mitigation and Prevention

To address CVE-2020-27925, follow these mitigation steps:

Immediate Steps to Take

Update iOS and iPadOS to version 14.2 or later.
Be cautious when answering calls to avoid inadvertently answering multiple calls.

Long-Term Security Practices

Regularly update your device's operating system to the latest version.
Stay informed about security vulnerabilities and best practices for call handling.

Patching and Updates

Ensure that your iOS and iPadOS devices are regularly updated to the latest software versions to prevent vulnerabilities like CVE-2020-27925.