Is CVE-2020-26200 actively exploited?

No active exploitation of CVE-2020-26200 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-26200 be exploited remotely?

No. CVE-2020-26200 requires physical access to exploit.

What is the CVSS score of CVE-2020-26200?

CVE-2020-26200 has a CVSS score of 6.8 (MEDIUM).

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MEDIUM

CVE-2020-26200

CWE-287Published: February 26, 2021· Updated: Jun 17, 2026

6.8

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2020-26200 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.