Medium severity · published Nov 25, 2022
CVE-2022-39334
Nextcloud also ships a CLI utility called nextcloudcmd which is sometimes used for automated scripting and headless servers
4.7
CVSS
0.2%
EPSS
No
On KEV
Description
Nextcloud also ships a CLI utility called nextcloudcmd which is sometimes used for automated scripting and headless servers. Versions of nextcloudcmd prior to 3.6.1 would incorrectly trust invalid TLS certificates, which may enable a Man-in-the-middle attack that exposes sensitive data or credentials to a network attacker. This affects the CLI only. It does not affect the standard GUI desktop Nextcloud clients, and it does not affect the Nextcloud server.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DE
Desktop · Nextcloud
before 3.6.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39334
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-39334
Exploit
https://github.com/nextcloud/desktop/issues/4927
Patch
https://github.com/nextcloud/desktop/pull/5022
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-82xx-98xv-4jxv
Permissions Required
https://hackerone.com/reports/1699740
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/09/msg00018.html
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