CVE-2022-39334

Name: CVE-2022-39334
Creator: NVD / NIST
Published: 2022-11-25T19:15:11.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 0.19%

Last modified Jun 17, 2026

CVE-2022-39334 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. 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. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.7/10

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

EPSS Probability

0.19%

9.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nextcloud	Desktop	< 3.6.1

References

https://github.com/nextcloud/desktop/issues/4927Exploit, Issue Tracking, Third Party Advisory
https://github.com/nextcloud/desktop/pull/5022Patch, Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-82xx-98xv-4jxvThird Party Advisory
https://hackerone.com/reports/1699740Permissions Required, Third Party Advisory
https://github.com/nextcloud/desktop/issues/4927Exploit, Issue Tracking, Third Party Advisory
https://github.com/nextcloud/desktop/pull/5022Patch, Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-82xx-98xv-4jxvThird Party Advisory
https://hackerone.com/reports/1699740Permissions Required, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/09/msg00018.html

Timeline

Published: Nov 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39334?

How severe is CVE-2022-39334?

CVE-2022-39334 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39334?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-39334?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST