CVE-2021-0198

MEDIUMNVD 4.44.4—

4.4

Improper access control in the firmware for the Intel(R) Ethernet Network Controller E810 before version 1.5.5.6 may allow a privileged user to potentially enable a denial of service via local access.

CVSS v3: 4.4
EG Score: 4.4(medium)
EPSS: 15.4%
KEV: Not listed

Published

November 17, 2021

Last Modified

November 21, 2024

References (4)

secure@intelhttps://security.netapp.com/advisory/ntap-20211210-0004/
secure@intelhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00554.html
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20211210-0004/
af854a3a-2127-422b-91ae-364da2661108https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00554.html

Weakness Classification(1)

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

CWE-863Incorrect Authorization

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:42 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-0198?

CVE-2021-0198 is a medium vulnerability published on November 17, 2021. Improper access control in the firmware for the Intel(R) Ethernet Network Controller E810 before version 1.5.5.6 may allow a privileged user to potentially enable a denial of service via local access.

When was CVE-2021-0198 disclosed?

CVE-2021-0198 was first published in the National Vulnerability Database on November 17, 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-2021-0198 actively exploited?

CVE-2021-0198 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-0198?

CVE-2021-0198 has a CVSS v3 base score of 4.4 (NVD).

How do I remediate CVE-2021-0198?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-0198, 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

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CVE-2021-0198

📅 Published

🔄 Last Modified

🔗 References (4)