CVE-2020-0523

Name: CVE-2020-0523
Creator: NVD / NIST
Published: 2021-02-17T14:15:14.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2020-0523 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. Improper access control in the firmware for the Intel(R) Ethernet I210 Controller series of network adapters before version 3.30 may potentially allow a privileged user to enable a denial of service via local access.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

Improper access control in the firmware for the Intel(R) Ethernet I210 Controller series of network adapters before version 3.30 may potentially allow a privileged user to enable a denial of service via local access.

Metrics

CVSS 3.1

4.4/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.24%

15.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Intel	Ethernet Controller I210 Firmware	< 3.30

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00318.htmlPatch, Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00318.htmlPatch, Vendor Advisory

Timeline

Published: Feb 17, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-0523?

How severe is CVE-2020-0523?

CVE-2020-0523 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2020-0523?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-0523?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST