Low severity · published Mar 8, 2022
CVE-2021-41181
Nextcloud talk is a self hosting messaging service
2.4
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TA
Talk · Nextcloud
before 12.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41181
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41181
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-497c-c8hx-6qcf
Patch
https://github.com/nextcloud/talk-android/pull/1585
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