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CVE-2025-14282 Affecting dropbear package, versions <2025.89-1

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.36% (29th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-DROPBEAR-14433776
  • published17 Dec 2025
  • disclosed12 Feb 2026
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Introduced: 17 Dec 2025

CVE-2025-14282  (opens in a new tab)

How to fix?

Upgrade Debian:unstable dropbear to version 2025.89-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dropbear package and not the dropbear package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.