PT-2021-11218 · Dell · Dell Inspiron 5675 Bios

Yngweijw · Published 2021-01-08 · Updated 2021-01-12 · CVE-2020-26186

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Dell Inspiron 5675 BIOS versions prior to 1.4.1

Description: The issue allows a local attacker with access to system memory to exploit a UEFI BIOS RuntimeServices overwrite vulnerability. This can be done by overwriting the RuntimeServices structure to execute arbitrary code in System Management Mode (SMM).

Recommendations: For Dell Inspiron 5675 BIOS versions prior to 1.4.1, update the BIOS to version 1.4.1 or later to resolve the issue. As a temporary workaround, consider restricting access to system memory to minimize the risk of exploitation.

Fix

Exposure of Resource to Wrong Sphere

Weakness Enumeration

CWE-642

CWE-668

Related Identifiers

CVE-2020-26186

Affected Products

Dell Inspiron 5675 Bios

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2020-26186 · Security Note
• https://dell.com/support/kbdoc/en-us/000180645/dsa-2020-247-dell-client-platform-security-update-for-uefi-bios-runtimeservices-overwrite-vulnerability · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-26186 · Vendor Advisory
• https://t.me/cibsecurity/21855 · Telegram Post