What is CVE-2021-21559?

CVE-2021-21559 is a high-severity vulnerability in Dell Networker, classified under Improper Certificate Validation. CVSS score: 7.1/10. Published 2021-06-08.

How severe is CVE-2021-21559?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2021-21559 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Dell Networker

CVE-2021-21559

Dell EMC NetWorker, versions 18.x, 19.1.x, 19.2.x 19.3.x, 19.4, and 19.4.0.1 contain an Improper Certificate Validation vulnerability in the client (NetWorker Management Console) components which uses SSL encrypted connection in order to c…

Vulnerability class: Improper Certificate Validation

EPSS: 0.000 (11.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Dell Networker — versions unspecified

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

Public proof-of-concept exploits

References

www.dell.com/support/kbdoc/en-us/000186638/dsa-2021-104-dell-emc-networker-secu… (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21559?: CVE-2021-21559 is a high-severity vulnerability in Dell Networker, classified under Improper Certificate Validation. CVSS score: 7.1/10. Published 2021-06-08.
How severe is CVE-2021-21559?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2021-21559 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.