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VULNERABILITIES

CVE-2023-28997 Details

Description

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can recover and modify the contents of end-to-end encrypted files. Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available.

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References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf CVEExploitTechnical DescriptionThird Party Advisory
https://github.com/nextcloud/desktop/pull/5324 CVEPatch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4p33-rw27-j5fc CVEVendor Advisory
https://lists.debian.org/debian-lts-announce/2025/09/msg00018.html CVE
https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf [email protected]ExploitTechnical DescriptionThird Party Advisory

see all 7 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-323Reusing a Nonce, Key Pair in Encryption[email protected]

Affected Products

ProductVersions
nextcloud desktop
>= 3.0.0, < 3.6.5

CPE

  • cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2023-28997
NVD Published Date:
Apr 4, 2023
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2023-28997 Details - Not Deferred