CVE-2021-41181: Nextcloud Talk app exposes chat messages on lockscreen
Nextcloud talk is a self hosting messaging service. In versions prior to 12.3.0 the Nextcloud Android Talk application did not properly detect the lockscreen state when a call was incoming. If an attacker got physical access to the locked phone, and the victim received a phone call the attacker could gain access to the chat messages and files of the user. It is recommended that the Nextcloud Android Talk App is upgraded to 12.3.0. There are no known workarounds.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the vulnerability ID for this Nextcloud Talk Android vulnerability?
The vulnerability ID for this Nextcloud Talk Android vulnerability is CVE-2021-41181.
What is the severity of CVE-2021-41181?
The severity of CVE-2021-41181 is low.
What is the affected software for CVE-2021-41181?
The affected software for CVE-2021-41181 is Nextcloud Talk Android versions prior to 12.3.0.
What is the description of CVE-2021-41181?
CVE-2021-41181 is a vulnerability in the Nextcloud Android Talk application where it did not properly detect the lockscreen state when a call was incoming, allowing an attacker with physical access to a locked phone to exploit the vulnerability.
How can I fix CVE-2021-41181?
To fix CVE-2021-41181, users should update to Nextcloud Talk Android version 12.3.0 or later.