CVE-2021-36320

HIGHNVD 7.59.8▲

7.5

Dell Networking X-Series firmware versions prior to 3.0.1.8 contain an authentication bypass vulnerability. A remote unauthenticated attacker may potentially hijack a session and access the webserver by forging the session ID.

CVSS v3: 7.5
EG Score: 9.8(medium)
EPSS: 74.6%
KEV: Not listed

Published

November 20, 2021

Last Modified

November 21, 2024

References (2)

security_alert@emchttps://www.dell.com/support/kbdoc/en-us/000193230/dsa-2021-191-dell-networking-x-series-security-update-for-multiple-security-vulnerabilities
af854a3a-2127-422b-91ae-364da2661108https://www.dell.com/support/kbdoc/en-us/000193230/dsa-2021-191-dell-networking-x-series-security-update-for-multiple-security-vulnerabilities

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-331Insufficient Entropy

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCEG score recompute
2026-05-26 07:17 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-36320?

CVE-2021-36320 is a high vulnerability published on November 20, 2021. Dell Networking X-Series firmware versions prior to 3.0.1.8 contain an authentication bypass vulnerability. A remote unauthenticated attacker may potentially hijack a session and access the webserver by forging the session ID.

When was CVE-2021-36320 disclosed?

CVE-2021-36320 was first published in the National Vulnerability Database on November 20, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-36320 actively exploited?

CVE-2021-36320 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 74.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-36320?

CVE-2021-36320 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.

How do I remediate CVE-2021-36320?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-36320, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-36320

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CVE-2021-36320

📅 Published

🔄 Last Modified

🔗 References (2)