CVE-2025-47711: medium-severity vulnerability in nbdkit
Nbdkit: nbdkit-server: off-by-one error when processing block status may lead to a denial of service
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.5%
There's a flaw in the nbdkit server when handling responses from its plugins regarding the status of data blocks. If a client makes a specific request for a very large data range, and a plugin responds with an even larger single block, the nbdkit server can encounter a critical internal error, leading to a denial-of-service.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
nbdkitRed Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 8 Advanced VirtualizationRed Hat · Red Hat Enterprise Linux 9Related CVEs — nbdkit
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