CVE-2025-66398 | BDVDB-2026-308902 Detail

Description#

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.19.0, an unauthenticated attacker can pollute the internal state (`restoreFilePath`) of the server via the `/skServer/validateBackup` endpoint. This allows the attacker to hijack the administrator's "Restore" functionality to overwrite critical server configuration files (e.g., `security.json`, `package.json`), leading to account takeover and Remote Code Execution (RCE). Version 2.19.0 patches this vulnerability.

Impact#

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Exploit#

History#

1. Version 12026-01-01Record published in the CVE List.
2. Version 22026-01-05Most recent update recorded in the CVE List.