CVE-2020-26186

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).

CVSS v3 6.8 MEDIUM
CVSS v2.0 7.2 HIGH

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.dell.com/support/kbdoc/en-us/000180645/dsa-2020-247-dell-client-platform-security-update-for-uefi-bios-runtimeservices-overwrite-vulnerability	Vendor Advisory
https://www.dell.com/support/kbdoc/en-us/000180645/dsa-2020-247-dell-client-platform-security-update-for-uefi-bios-runtimeservices-overwrite-vulnerability	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dell:inspiron_5675_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:dell:inspiron_5675:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-01-08 19:15

Updated : 2024-11-21 05:19

NVD link : CVE-2020-26186

Mitre link : CVE-2020-26186

CVE.ORG link : CVE-2020-26186

JSON object : View

Products Affected

dell

inspiron_5675
inspiron_5675_firmware

CWE

CWE-642

External Control of Critical State Data

CWE-668

Exposure of Resource to Wrong Sphere

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