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Fencer Vulns
medium 6.5

CVE-2019-14851 json

A denial of service vulnerability was discovered in nbdkit.

published 2021-03-18 5 y ago modified 2026-06-17 4 mo ago also EUVD-2019-5974

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

A denial of service vulnerability was discovered in nbdkit. A client issuing a certain sequence of commands could possibly trigger an assertion failure, causing nbdkit to exit. This issue only affected nbdkit versions 1.12.7, 1.14.1, and 1.15.1.

Patch / fix

  • nbdkit_project nbdkit 1.12.7, 1.14.1, 1.15.1
  • nbdkit Debian 14, Debian 13, Debian 12 1.14.2-1

debian advisories DEBIAN-CVE-2019-14851

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-14851 updated cvss 6.5

nbdkit: assertion failure by issuing commands in the wrong order

  • Red Hat Enterprise Linux 7 nbdkit, nbdkit-plugin-vddk, nbdkit-basic-plugins, nbdkit-plugin-python2, nbdkit-example-plugins, nbdkit-plugin-python-common Red Hat Enterprise Linux 8 nbdkit, nbdkit-server, nbdkit-plugin-xz, nbdkit-xz-filter, nbdkit-nbd-plugin, nbdkit-ssh-plugin, +17 more Red Hat Enterprise Linux 8 Advanced Virtualization nbdkit, nbdkit-server, nbdkit-plugin-xz, nbdkit-xz-filter, nbdkit-nbd-plugin, nbdkit-ssh-plugin, +17 more Red Hat Virtualization 4 nbdkit, nbdkit-plugin-vddk, nbdkit-basic-plugins, nbdkit-plugin-python2, nbdkit-plugin-python-common
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.99% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:N/A:P

Affected products

  • n/a nbdkit

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.