What’s Vulnerable › Vulnerabilities

CVE-2021-20286

Severity: low (CVSS 2.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-03-15 · updated 2026-06-17
Weakness: CWE-617

Description

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.

Affected products

Red Hat Enterprise Linux: 8.3.0
[UNKNOWN] libnbd: before 1.7.3 — fixed in 1.7.3

How to fix

Upgrade to a fixed version: [UNKNOWN] libnbd 1.7.3. Check the vendor advisory for mitigations.

References

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