A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.
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02 Oct 2025 06:11Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.13.1
CVSS 23.5
EPSS0.00582