What is CVE-2021-36306?

CVE-2021-36306 is a high-severity vulnerability in Dell Networking OS, classified under Improper Authentication. CVSS score: 8.1/10. Published 2021-11-20.

How severe is CVE-2021-36306?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Dell Networking OS

CVE-2021-36306

Networking OS10, versions prior to October 2021 with RESTCONF API enabled, contains an authentication bypass vulnerability. A remote unauthenticated attacker could exploit this vulnerability to gain access and perform actions on the affected system.

Vulnerability class: Broken Authentication

Published 2021-11-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.037 (89.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.036 · newest: 0.037 · change: +0.001

Affected products

Dell Networking OS — versions unspecified
Dell Networking Os10

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.dell.com/support/kbdoc/en-us/000193076 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-36306?: CVE-2021-36306 is a high-severity vulnerability in Dell Networking OS, classified under Improper Authentication. CVSS score: 8.1/10. Published 2021-11-20.
How severe is CVE-2021-36306?: High severity. CVSS v3 base score is 8.1 out of 10.