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CVE-2025-14282

CVE-2025-14282 · Dropbear: privilege escalation via unix domain socket forwardings

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A flaw was found in Dropbear. When running in multi-user mode and authenticating users, the dropbear ssh server does the socket forwardings requested by the remote client as root, only switching to the logged-in user upon spawning a shell or performing some operations like reading the user's files. With the recent ability of also using unix domain sockets as the forwarding destination any user able to log in via ssh can connect to any unix socket with the root's credentials, bypassing both file system restrictions and any SO_PEERCRED / SO_PASSCRED checks performed by the peer.

CVSS 5.4 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • dropbear

    Versions
    • ≥ 2024.84, < 2025.88: Affected (custom)

    Update to 2025.88

  • dropbear Debian:13

    Versions
    • 2025.88-2
    Affected ranges
    • ECOSYSTEM: < 2025.89-1~deb13u1

    Update to 2025.89-1~deb13u1

  • dropbear Debian:14

    Versions
    • 2025.88-2
    • 2025.89-1~deb13u1
    Affected ranges
    • ECOSYSTEM: < 2025.89-1

    Update to 2025.89-1

  • dropbear Ubuntu:16.04:LTS

    Versions
    • 2014.65-1ubuntu2
    • 2015.68-1
    • 2015.70-1
    • 2015.71-1
    • 2016.72-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dropbear Ubuntu:Pro:18.04:LTS

    Versions
    • 2017.75-2
    • 2017.75-3build1
    • 2017.75-3ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dropbear Ubuntu:Pro:20.04:LTS

    Versions
    • 2019.78-2build1
    • 2019.78-2ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dropbear Ubuntu:22.04:LTS

    Versions
    • 2020.81-3
    • 2020.81-4
    • 2020.81-5
    • 2020.81-5ubuntu0.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dropbear Ubuntu:24.04:LTS

    Versions
    • 2022.83-2
    • 2022.83-3
    • 2022.83-4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dropbear Ubuntu:25.10

    Versions
    • 2024.86-2
    • 2025.88-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dropbear Ubuntu:26.04:LTS

    Versions
    • 2025.88-2
    • 2025.89-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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