CVE-2021-1854 : Exploit Details and Defense Strategies
Learn about CVE-2021-1854, a vulnerability in iOS and iPadOS, impacting devices running versions less than 14.5. Follow mitigation steps to secure your device.
A call termination issue with improved logic in iOS and iPadOS was addressed in the CVE-2021-1854. Learn more about the impact, technical details, and mitigation steps.
Understanding CVE-2021-1854
This section will delve into what CVE-2021-1854 is, its impact, technical details, and how to mitigate the vulnerability.
What is CVE-2021-1854?
CVE-2021-1854 relates to a call termination issue in iOS and iPadOS that allows a legacy cellular network to automatically answer an incoming call when an ongoing call ends or drops.
The Impact of CVE-2021-1854
The vulnerability poses a risk of unauthorized access to incoming calls on devices running iOS and iPadOS versions less than 14.5, affecting user privacy and security.
Technical Details of CVE-2021-1854
Explore the vulnerability description, affected systems, versions, and the exploitation mechanism in this section.
Vulnerability Description
The issue was fixed in iOS 14.5 and iPadOS 14.5 by enhancing the call termination logic to prevent automatic call answering.
Affected Systems and Versions
Apple's iOS and iPadOS versions less than 14.5 are impacted by this vulnerability, paving the way for potential security breaches.
Exploitation Mechanism
The vulnerability allows malicious entities to exploit the legacy cellular network to automatically pick up incoming calls, circumventing user consent.
Mitigation and Prevention
Discover the immediate steps to take and long-term security practices to safeguard against CVE-2021-1854.
Immediate Steps to Take
Users should update their devices to iOS 14.5 or iPadOS 14.5 to mitigate the vulnerability and prevent unauthorized call interceptions.
Long-Term Security Practices
Enforcing a regular update policy, educating users on security best practices, and monitoring call-related behaviors can enhance overall device security.
Patching and Updates
Apple has released iOS 14.5 and iPadOS 14.5 to address this vulnerability. Ensure timely installation of security patches to stay protected.