CVE-2021-20286

Low

Published: 15 March 2021

Published

15 March 2021

Modified

21 November 2024

KEV Added

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Patch

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CVSS Score v3.1 2.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

EPSS Score 0.0025 48.4th percentile

Risk Priority 6 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-20286 is a low-severity Reachable Assertion (CWE-617) vulnerability in Redhat Libnbd. Its CVSS base score is 2.7 (Low).

Operationally, ranked at the 48.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

A flaw was found in libnbd 1.7.3. An assertion failure in nbd_unlocked_opt_go in ilb/opt.c may lead to denial of service.

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

redhat

libnbd

≤ 1.7.3

redhat

enterprise linux

8.3.0

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.