CVE Feed

    Dashboard / CVE / CVE-2023-28997

    CVE-2023-28997

    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.

    Published:Apr 4, 2023
    Last Modified:Nov 3, 2025
    EPS:Apr 4, 2023
    EPSS Score:0.00166
    CVSS Score:6.7

    Affected Products

    Vendor
    Nextcloud
    Product
    Desktop

    Exploits

    https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdfhttps://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-66549 (CVSS 2.4) — Nextcloud Desktop is the desktop sync client for Nextcloud. Prior to 3.16.5, when trying to manually lock a fi…
    CVE-2025-47792 (CVSS 5) — Nextcloud Desktop is the desktop sync client for Nextcloud. In versions of Nextcloud Desktop prior to 3.15, 3r…
    CVE-2024-52510 (CVSS 4.2) — The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desk…
    CVE-2024-46958 (CVSS 9.1) — In Nextcloud Desktop Client 3.13.1 through 3.13.3 on Linux, synchronized files (between the server and client)…
    CVE-2024-37885 (CVSS 3.8) — The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. A code i…
    CVE-2023-29000 (CVSS 5.4) — The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0…
    CVE-2023-28999 (CVSS 6.9) — Nextcloud is an open-source productivity platform. In Nextcloud Desktop client 3.0.0 until 3.8.0, Nextcloud An…
    CVE-2023-28998 (CVSS 6.7) — The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0…
    CVE-2023-23942 (CVSS 5.4) — The Nextcloud Desktop Client is a tool to synchronize files from a Nextcloud Server with your computer. Versio…
    CVE-2023-22472 (CVSS 5.3) — Deck is a kanban style organization tool aimed at personal planning and project organization for teams integra…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High