CVE-2022-39334 - CVE House

Back to Database

Status published Low CVE-2022-39334

nextcloudcmd incorrectly trusts bad TLS certificates

3.9 CVSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2022-39334

Check My Exposure

Credits & Attribution

No credits recorded in the NVD database.

References

More from nextcloud

View All →

Nextcloud Twofactor WebAuthn app was updated based on public key

Nextcloud Deck app allowed user with "Can share" permission to modify permissions of other non-owners

Nextcloud talk allows participants to blindly delete poll drafts of other users by ID

Nextcloud Contacts vulnerable to Stored XSS in contacts app via organisation and title field

Nextcloud Tables app allowed users to view columns metadata information of any table

Affected Vendor

nextcloud

View all reports →

Affected Software

security-advisories

Vulnerable Versions:

< 3.6.1

Timeline

Official Publish: November 25th, 2022

Last Modified: November 3rd, 2025

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1557 Adversary-in-the-Middle

Credential Access

T1040 Network Sniffing

T1552 Unsecured Credentials

Credential Access

T1071 Application Layer Protocol

Command and Control

T1565 Data Manipulation