CVE-2023-29000

Name: CVE-2023-29000
Creator: NVD / NIST
Published: 2023-04-04T13:15:09.067+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2023-29000 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt files with a key known to the attacker. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt files with a key known to the attacker. This issue is fixed in Nextcloud Desktop 3.7.0. No known workarounds are available.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.39%

30.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Nextcloud	Desktop	>= 3.0.0, < 3.7.0

References

https://github.com/nextcloud/desktop/pull/4949Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534Vendor Advisory
https://hackerone.com/reports/1679267Permissions Required
https://github.com/nextcloud/desktop/pull/4949Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534Vendor Advisory
https://hackerone.com/reports/1679267Permissions Required

Timeline

Published: Apr 4, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-29000?

How severe is CVE-2023-29000?

CVE-2023-29000 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2023-29000?

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-2023-29000?

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

Scan your code now

Source: NVD / NIST