Medium severity · published Sep 16, 2022
CVE-2022-39212
Last video frame is still sent after video is disabled in a call in Nextcloud Talk
5.3
CVSS
0.7%
EPSS
No
On KEV
Description
Nextcloud Talk is an open source chat, video & audio calls client for the Nextcloud platform. In affected versions an attacker could see the last video frame of any participant who has video disabled but a camera selected. It is recommended that the Nextcloud Talk app is upgraded to 13.0.8 or 14.0.4. Users unable to upgrade should select "None" as camera before joining the call.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
security-advisories · nextcloud
< 13.0.8; >= 14.0.0, < 14.0.4 · source: vendor
TA
Talk · Nextcloud
before 13.0.8; 14.0.0 before 14.0.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39212
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-39212
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wq3g-2x46-q2gv
Patch
https://github.com/nextcloud/spreed/pull/7673
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