CVE-2020-26200

Severity Score

6.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A component of Kaspersky custom boot loader allowed loading of untrusted UEFI modules due to insufficient check of their authenticity. This component is incorporated in Kaspersky Rescue Disk (KRD) and was trusted by the Authentication Agent of Full Disk Encryption in Kaspersky Endpoint Security (KES). This issue allowed to bypass the UEFI Secure Boot security feature. An attacker would need physical access to the computer to exploit it. Otherwise, local administrator privileges would be required to modify the boot loader component.

Un componente del cargador de arranque personalizado de Kaspersky permitió la carga de módulos UEFI no confiables debido a una comprobación insuficiente de su autenticidad. Este componente está incorporado en Kaspersky Rescue Disk (KRD) y fue confiable mediante el Agente de Autenticación de Full Disk Encryption en Kaspersky Endpoint Security (KES). Este problema permitió omitir la característica de seguridad UEFI Secure Boot. Un atacante necesitaría acceso físico a la computadora para explotarla. De lo contrario, se necesitarían privilegios de administrador local para modificar el componente del cargador de arranque

*Credits: N/A

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-09-30 CVE Reserved
2021-02-26 CVE Published
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (2)

URL	Tag	Source
https://github.com/CVEProject/cvelist/blob/master/2020/26xxx/CVE-2020-26200.json	Third Party Advisory
https://support.kaspersky.com/general/vulnerability.aspx?el=12430#170221	Broken Link

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Kaspersky Search vendor "Kaspersky"		Endpoint Security Search vendor "Kaspersky" for product "Endpoint Security"				10 Search vendor "Kaspersky" for product "Endpoint Security" and version "10"		sp2_mr2		Affected
Kaspersky Search vendor "Kaspersky"		Endpoint Security Search vendor "Kaspersky" for product "Endpoint Security"				10 Search vendor "Kaspersky" for product "Endpoint Security" and version "10"		sp2_mr3		Affected
Kaspersky Search vendor "Kaspersky"		Endpoint Security Search vendor "Kaspersky" for product "Endpoint Security"				11.0.0 Search vendor "Kaspersky" for product "Endpoint Security" and version "11.0.0"		-		Affected
Kaspersky Search vendor "Kaspersky"		Endpoint Security Search vendor "Kaspersky" for product "Endpoint Security"				11.0.1 Search vendor "Kaspersky" for product "Endpoint Security" and version "11.0.1"		-		Affected
Kaspersky Search vendor "Kaspersky"		Endpoint Security Search vendor "Kaspersky" for product "Endpoint Security"				11.1.0 Search vendor "Kaspersky" for product "Endpoint Security" and version "11.1.0"		-		Affected
Kaspersky Search vendor "Kaspersky"		Rescue Disk Search vendor "Kaspersky" for product "Rescue Disk"				< 18.0.11.3 Search vendor "Kaspersky" for product "Rescue Disk" and version " < 18.0.11.3"		-		Affected