CVE-2020-26186

Name: CVE-2020-26186
Creator: NVD / NIST
Published: 2021-01-08T19:15:14.32+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.36%

Last modified Jun 17, 2026

CVE-2020-26186 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Dell Inspiron 5675 BIOS versions prior to 1.4.1 contain a UEFI BIOS RuntimeServices overwrite vulnerability. A local attacker with access to system memory may exploit this vulnerability by overwriting the RuntimeServices structure to execute arbitrary code in System Management Mode (SMM).. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

Description

Dell Inspiron 5675 BIOS versions prior to 1.4.1 contain a UEFI BIOS RuntimeServices overwrite vulnerability. A local attacker with access to system memory may exploit this vulnerability by overwriting the RuntimeServices structure to execute arbitrary code in System Management Mode (SMM).

Metrics

CVSS 3.1

6.8/10

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

EPSS Probability

0.36%

28.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dell	Inspiron 5675 Firmware	< 1.4.1

References

Timeline

Published: Jan 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-26186?

How severe is CVE-2020-26186?

CVE-2020-26186 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2020-26186?

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-2020-26186?

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

Scan your code now

Source: NVD / NIST