CVE-2021-41181 is a vulnerability in Nextcloud Talk
Published on March 8, 2022
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.
Vulnerability Analysis
CVE-2021-41181 can be exploited with physical access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2021-41181 has been classified to as an Information Disclosure vulnerability or weakness.
Products Associated with CVE-2021-41181
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Affected Versions
nextcloud security-advisories Version < 12.3.0 is affected by CVE-2021-41181Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.