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Vulnerability Details CVE-2021-32689

Nextcloud Talk is a fully on-premises audio/video and chat communication service. In versions prior to 11.2.2, if a user was able to reuse an earlier used username, they could get access to any chat message sent to the previous user with this username. The issue was patched in versions 11.2.2 and 11.3.0. As a workaround, don't allow users to choose usernames themselves. This is the default behaviour of Nextcloud, but some user providers may allow doing so.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 49.0%
CVSS Severity
CVSS v3 Score 8.1
CVSS v2 Score 4.0
Products affected by CVE-2021-32689
  • Nextcloud » Talk » Version: N/A
    cpe:2.3:a:nextcloud:talk:-
  • Nextcloud » Talk » Version: 0.1.0
    cpe:2.3:a:nextcloud:talk:0.1.0
  • Nextcloud » Talk » Version: 0.1.1
    cpe:2.3:a:nextcloud:talk:0.1.1
  • Nextcloud » Talk » Version: 0.1.2
    cpe:2.3:a:nextcloud:talk:0.1.2
  • Nextcloud » Talk » Version: 0.2.0
    cpe:2.3:a:nextcloud:talk:0.2.0
  • Nextcloud » Talk » Version: 1.0
    cpe:2.3:a:nextcloud:talk:1.0
  • Nextcloud » Talk » Version: 1.0.1
    cpe:2.3:a:nextcloud:talk:1.0.1
  • Nextcloud » Talk » Version: 1.0.10
    cpe:2.3:a:nextcloud:talk:1.0.10
  • Nextcloud » Talk » Version: 1.0.11
    cpe:2.3:a:nextcloud:talk:1.0.11
  • Nextcloud » Talk » Version: 1.0.12
    cpe:2.3:a:nextcloud:talk:1.0.12
  • Nextcloud » Talk » Version: 1.0.13
    cpe:2.3:a:nextcloud:talk:1.0.13
  • Nextcloud » Talk » Version: 1.0.14
    cpe:2.3:a:nextcloud:talk:1.0.14
  • Nextcloud » Talk » Version: 1.0.2
    cpe:2.3:a:nextcloud:talk:1.0.2
  • Nextcloud » Talk » Version: 1.0.21
    cpe:2.3:a:nextcloud:talk:1.0.21
  • Nextcloud » Talk » Version: 1.0.22
    cpe:2.3:a:nextcloud:talk:1.0.22
  • Nextcloud » Talk » Version: 1.0.3
    cpe:2.3:a:nextcloud:talk:1.0.3
  • Nextcloud » Talk » Version: 1.0.4
    cpe:2.3:a:nextcloud:talk:1.0.4
  • Nextcloud » Talk » Version: 1.0.5
    cpe:2.3:a:nextcloud:talk:1.0.5
  • Nextcloud » Talk » Version: 1.0.6
    cpe:2.3:a:nextcloud:talk:1.0.6
  • Nextcloud » Talk » Version: 1.0.7
    cpe:2.3:a:nextcloud:talk:1.0.7
  • Nextcloud » Talk » Version: 1.0.8
    cpe:2.3:a:nextcloud:talk:1.0.8
  • Nextcloud » Talk » Version: 1.0.9
    cpe:2.3:a:nextcloud:talk:1.0.9
  • Nextcloud » Talk » Version: 1.1.0
    cpe:2.3:a:nextcloud:talk:1.1.0
  • Nextcloud » Talk » Version: 1.1.1
    cpe:2.3:a:nextcloud:talk:1.1.1
  • Nextcloud » Talk » Version: 1.1.2
    cpe:2.3:a:nextcloud:talk:1.1.2
  • Nextcloud » Talk » Version: 1.1.3
    cpe:2.3:a:nextcloud:talk:1.1.3
  • Nextcloud » Talk » Version: 1.2.0
    cpe:2.3:a:nextcloud:talk:1.2.0
  • Nextcloud » Talk » Version: 10.0.0
    cpe:2.3:a:nextcloud:talk:10.0.0
  • Nextcloud » Talk » Version: 10.0.1
    cpe:2.3:a:nextcloud:talk:10.0.1
  • Nextcloud » Talk » Version: 10.0.2
    cpe:2.3:a:nextcloud:talk:10.0.2
  • Nextcloud » Talk » Version: 10.0.3
    cpe:2.3:a:nextcloud:talk:10.0.3
  • Nextcloud » Talk » Version: 10.0.4
    cpe:2.3:a:nextcloud:talk:10.0.4
  • Nextcloud » Talk » Version: 10.0.5
    cpe:2.3:a:nextcloud:talk:10.0.5
  • Nextcloud » Talk » Version: 10.0.6
    cpe:2.3:a:nextcloud:talk:10.0.6
  • Nextcloud » Talk » Version: 10.0.7
    cpe:2.3:a:nextcloud:talk:10.0.7
  • Nextcloud » Talk » Version: 10.0.8
    cpe:2.3:a:nextcloud:talk:10.0.8
  • Nextcloud » Talk » Version: 10.1.0
    cpe:2.3:a:nextcloud:talk:10.1.0
  • Nextcloud » Talk » Version: 10.1.1
    cpe:2.3:a:nextcloud:talk:10.1.1
  • Nextcloud » Talk » Version: 10.1.2
    cpe:2.3:a:nextcloud:talk:10.1.2
  • Nextcloud » Talk » Version: 10.1.3
    cpe:2.3:a:nextcloud:talk:10.1.3
  • Nextcloud » Talk » Version: 10.1.4
    cpe:2.3:a:nextcloud:talk:10.1.4
  • Nextcloud » Talk » Version: 10.1.5
    cpe:2.3:a:nextcloud:talk:10.1.5
  • Nextcloud » Talk » Version: 11.0.0
    cpe:2.3:a:nextcloud:talk:11.0.0
  • Nextcloud » Talk » Version: 11.0.1
    cpe:2.3:a:nextcloud:talk:11.0.1
  • Nextcloud » Talk » Version: 11.1.0
    cpe:2.3:a:nextcloud:talk:11.1.0
  • Nextcloud » Talk » Version: 11.1.1
    cpe:2.3:a:nextcloud:talk:11.1.1
  • Nextcloud » Talk » Version: 11.1.2
    cpe:2.3:a:nextcloud:talk:11.1.2
  • Nextcloud » Talk » Version: 11.2.0
    cpe:2.3:a:nextcloud:talk:11.2.0
  • Nextcloud » Talk » Version: 11.2.1
    cpe:2.3:a:nextcloud:talk:11.2.1
  • Nextcloud » Talk » Version: 2.0.0
    cpe:2.3:a:nextcloud:talk:2.0.0
  • Nextcloud » Talk » Version: 2.0.1
    cpe:2.3:a:nextcloud:talk:2.0.1
  • Nextcloud » Talk » Version: 2.0.2
    cpe:2.3:a:nextcloud:talk:2.0.2
  • Nextcloud » Talk » Version: 2.1.0
    cpe:2.3:a:nextcloud:talk:2.1.0
  • Nextcloud » Talk » Version: 2.1.1
    cpe:2.3:a:nextcloud:talk:2.1.1
  • Nextcloud » Talk » Version: 2.1.2
    cpe:2.3:a:nextcloud:talk:2.1.2
  • Nextcloud » Talk » Version: 2.9.0
    cpe:2.3:a:nextcloud:talk:2.9.0
  • Nextcloud » Talk » Version: 2.9.1
    cpe:2.3:a:nextcloud:talk:2.9.1
  • Nextcloud » Talk » Version: 3.0.0
    cpe:2.3:a:nextcloud:talk:3.0.0
  • Nextcloud » Talk » Version: 3.0.1
    cpe:2.3:a:nextcloud:talk:3.0.1
  • Nextcloud » Talk » Version: 3.1.0
    cpe:2.3:a:nextcloud:talk:3.1.0
  • Nextcloud » Talk » Version: 3.1.1
    cpe:2.3:a:nextcloud:talk:3.1.1
  • Nextcloud » Talk » Version: 3.1.2
    cpe:2.3:a:nextcloud:talk:3.1.2
  • Nextcloud » Talk » Version: 3.1.3
    cpe:2.3:a:nextcloud:talk:3.1.3
  • Nextcloud » Talk » Version: 3.2.0
    cpe:2.3:a:nextcloud:talk:3.2.0
  • Nextcloud » Talk » Version: 3.2.1
    cpe:2.3:a:nextcloud:talk:3.2.1
  • Nextcloud » Talk » Version: 3.2.2
    cpe:2.3:a:nextcloud:talk:3.2.2
  • Nextcloud » Talk » Version: 3.2.3
    cpe:2.3:a:nextcloud:talk:3.2.3
  • Nextcloud » Talk » Version: 3.2.4
    cpe:2.3:a:nextcloud:talk:3.2.4
  • Nextcloud » Talk » Version: 3.2.5
    cpe:2.3:a:nextcloud:talk:3.2.5
  • Nextcloud » Talk » Version: 3.2.6
    cpe:2.3:a:nextcloud:talk:3.2.6
  • Nextcloud » Talk » Version: 3.2.7
    cpe:2.3:a:nextcloud:talk:3.2.7
  • Nextcloud » Talk » Version: 3.2.8
    cpe:2.3:a:nextcloud:talk:3.2.8
  • Nextcloud » Talk » Version: 3.3.0
    cpe:2.3:a:nextcloud:talk:3.3.0
  • Nextcloud » Talk » Version: 3.99.10
    cpe:2.3:a:nextcloud:talk:3.99.10
  • Nextcloud » Talk » Version: 3.99.11
    cpe:2.3:a:nextcloud:talk:3.99.11
  • Nextcloud » Talk » Version: 3.99.12
    cpe:2.3:a:nextcloud:talk:3.99.12
  • Nextcloud » Talk » Version: 3.99.8
    cpe:2.3:a:nextcloud:talk:3.99.8
  • Nextcloud » Talk » Version: 4.0.0
    cpe:2.3:a:nextcloud:talk:4.0.0
  • Nextcloud » Talk » Version: 4.0.1
    cpe:2.3:a:nextcloud:talk:4.0.1
  • Nextcloud » Talk » Version: 4.0.2
    cpe:2.3:a:nextcloud:talk:4.0.2
  • Nextcloud » Talk » Version: 4.0.3
    cpe:2.3:a:nextcloud:talk:4.0.3
  • Nextcloud » Talk » Version: 4.0.4
    cpe:2.3:a:nextcloud:talk:4.0.4
  • Nextcloud » Talk » Version: 4.99.0
    cpe:2.3:a:nextcloud:talk:4.99.0
  • Nextcloud » Talk » Version: 4.99.1
    cpe:2.3:a:nextcloud:talk:4.99.1
  • Nextcloud » Talk » Version: 4.99.5
    cpe:2.3:a:nextcloud:talk:4.99.5
  • Nextcloud » Talk » Version: 5.0.0
    cpe:2.3:a:nextcloud:talk:5.0.0
  • Nextcloud » Talk » Version: 5.0.1
    cpe:2.3:a:nextcloud:talk:5.0.1
  • Nextcloud » Talk » Version: 5.0.2
    cpe:2.3:a:nextcloud:talk:5.0.2
  • Nextcloud » Talk » Version: 5.0.3
    cpe:2.3:a:nextcloud:talk:5.0.3
  • Nextcloud » Talk » Version: 5.0.4
    cpe:2.3:a:nextcloud:talk:5.0.4
  • Nextcloud » Talk » Version: 5.99.10
    cpe:2.3:a:nextcloud:talk:5.99.10
  • Nextcloud » Talk » Version: 6.0.0
    cpe:2.3:a:nextcloud:talk:6.0.0
  • Nextcloud » Talk » Version: 6.0.1
    cpe:2.3:a:nextcloud:talk:6.0.1
  • Nextcloud » Talk » Version: 6.0.2
    cpe:2.3:a:nextcloud:talk:6.0.2
  • Nextcloud » Talk » Version: 6.0.3
    cpe:2.3:a:nextcloud:talk:6.0.3
  • Nextcloud » Talk » Version: 6.0.4
    cpe:2.3:a:nextcloud:talk:6.0.4
  • Nextcloud » Talk » Version: 6.0.5
    cpe:2.3:a:nextcloud:talk:6.0.5
  • Nextcloud » Talk » Version: 6.0.6
    cpe:2.3:a:nextcloud:talk:6.0.6
  • Nextcloud » Talk » Version: 6.0.7
    cpe:2.3:a:nextcloud:talk:6.0.7
  • Nextcloud » Talk » Version: 6.1.0
    cpe:2.3:a:nextcloud:talk:6.1.0
  • Nextcloud » Talk » Version: 6.1.1
    cpe:2.3:a:nextcloud:talk:6.1.1
  • Nextcloud » Talk » Version: 6.1.2
    cpe:2.3:a:nextcloud:talk:6.1.2
  • Nextcloud » Talk » Version: 6.1.3
    cpe:2.3:a:nextcloud:talk:6.1.3
  • Nextcloud » Talk » Version: 6.1.4
    cpe:2.3:a:nextcloud:talk:6.1.4
  • Nextcloud » Talk » Version: 6.1.5
    cpe:2.3:a:nextcloud:talk:6.1.5
  • Nextcloud » Talk » Version: 6.1.6
    cpe:2.3:a:nextcloud:talk:6.1.6
  • Nextcloud » Talk » Version: 7.0.0
    cpe:2.3:a:nextcloud:talk:7.0.0
  • Nextcloud » Talk » Version: 7.0.1
    cpe:2.3:a:nextcloud:talk:7.0.1
  • Nextcloud » Talk » Version: 7.0.2
    cpe:2.3:a:nextcloud:talk:7.0.2
  • Nextcloud » Talk » Version: 7.0.3
    cpe:2.3:a:nextcloud:talk:7.0.3
  • Nextcloud » Talk » Version: 7.0.4
    cpe:2.3:a:nextcloud:talk:7.0.4
  • Nextcloud » Talk » Version: 7.0.5
    cpe:2.3:a:nextcloud:talk:7.0.5
  • Nextcloud » Talk » Version: 7.0.6
    cpe:2.3:a:nextcloud:talk:7.0.6
  • Nextcloud » Talk » Version: 7.0.7
    cpe:2.3:a:nextcloud:talk:7.0.7
  • Nextcloud » Talk » Version: 7.0.8
    cpe:2.3:a:nextcloud:talk:7.0.8
  • Nextcloud » Talk » Version: 8.0.0
    cpe:2.3:a:nextcloud:talk:8.0.0
  • Nextcloud » Talk » Version: 8.0.1
    cpe:2.3:a:nextcloud:talk:8.0.1
  • Nextcloud » Talk » Version: 8.0.10
    cpe:2.3:a:nextcloud:talk:8.0.10
  • Nextcloud » Talk » Version: 8.0.11
    cpe:2.3:a:nextcloud:talk:8.0.11
  • Nextcloud » Talk » Version: 8.0.12
    cpe:2.3:a:nextcloud:talk:8.0.12
  • Nextcloud » Talk » Version: 8.0.13
    cpe:2.3:a:nextcloud:talk:8.0.13
  • Nextcloud » Talk » Version: 8.0.14
    cpe:2.3:a:nextcloud:talk:8.0.14
  • Nextcloud » Talk » Version: 8.0.15
    cpe:2.3:a:nextcloud:talk:8.0.15
  • Nextcloud » Talk » Version: 8.0.2
    cpe:2.3:a:nextcloud:talk:8.0.2
  • Nextcloud » Talk » Version: 8.0.3
    cpe:2.3:a:nextcloud:talk:8.0.3
  • Nextcloud » Talk » Version: 8.0.4
    cpe:2.3:a:nextcloud:talk:8.0.4
  • Nextcloud » Talk » Version: 8.0.5
    cpe:2.3:a:nextcloud:talk:8.0.5
  • Nextcloud » Talk » Version: 8.0.6
    cpe:2.3:a:nextcloud:talk:8.0.6
  • Nextcloud » Talk » Version: 8.0.7
    cpe:2.3:a:nextcloud:talk:8.0.7
  • Nextcloud » Talk » Version: 8.0.8
    cpe:2.3:a:nextcloud:talk:8.0.8
  • Nextcloud » Talk » Version: 8.0.9
    cpe:2.3:a:nextcloud:talk:8.0.9
  • Nextcloud » Talk » Version: 8.1.0
    cpe:2.3:a:nextcloud:talk:8.1.0
  • Nextcloud » Talk » Version: 8.2.0
    cpe:2.3:a:nextcloud:talk:8.2.0
  • Nextcloud » Talk » Version: 9.0.0
    cpe:2.3:a:nextcloud:talk:9.0.0
  • Nextcloud » Talk » Version: 9.0.1
    cpe:2.3:a:nextcloud:talk:9.0.1
  • Nextcloud » Talk » Version: 9.0.10
    cpe:2.3:a:nextcloud:talk:9.0.10
  • Nextcloud » Talk » Version: 9.0.2
    cpe:2.3:a:nextcloud:talk:9.0.2
  • Nextcloud » Talk » Version: 9.0.3
    cpe:2.3:a:nextcloud:talk:9.0.3
  • Nextcloud » Talk » Version: 9.0.4
    cpe:2.3:a:nextcloud:talk:9.0.4
  • Nextcloud » Talk » Version: 9.0.5
    cpe:2.3:a:nextcloud:talk:9.0.5
  • Nextcloud » Talk » Version: 9.0.6
    cpe:2.3:a:nextcloud:talk:9.0.6
  • Nextcloud » Talk » Version: 9.0.7
    cpe:2.3:a:nextcloud:talk:9.0.7
  • Nextcloud » Talk » Version: 9.0.8
    cpe:2.3:a:nextcloud:talk:9.0.8
  • Nextcloud » Talk » Version: 9.0.9
    cpe:2.3:a:nextcloud:talk:9.0.9


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