Beware: FreeBSD rtsold RCE Flaw Lets Hackers Run Wild!

FreeBSD rtsold 15.x is facing a remote code execution vulnerability via DNSSL, thanks to a command injection flaw. It’s like a bad sitcom where shell metacharacters crash the party without an invite. So, if you’re running FreeBSD 13.x, 14.x, or 15.x without the latest patch, it’s time to patch up and avoid this comedic fiasco.

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Published: December 25, 2025 6:19 pmAdded: December 25, 2025 at 10:35 amAssembled by: The Editor
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Hot Take:

Ah, FreeBSD, you had one job: keep the hackers out! But instead, you rolled out the welcome mat with a delightful bug in rtsold, allowing remote code execution. It’s like leaving your front door wide open with a neon sign saying “Hackers Welcome!” Might be time for a software security lock change.

Key Points:

  • FreeBSD’s rtsold has a vulnerability allowing remote code execution.
  • The bug resides in processing unvalidated domain names from IPv6 Router Advertisements.
  • Exploitation requires network adjacency and root privileges.
  • The exploit leverages shell metacharacter injection via unquoted variable expansion.
  • Good news: A patch is available—time to update!

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