Description
A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Published: 2021-03-03
Score: 7.6 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-4867-1 grub2 security update
EUVD EUVD EUVD-2020-18312 A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00026}

epss

{'score': 0.00021}


Subscriptions

Fedoraproject Fedora
Gnu Grub2
Netapp Ontap Select Deploy Administration Utility
Redhat Enterprise Linux Enterprise Linux Server Aus Enterprise Linux Server Eus Enterprise Linux Server Tus Enterprise Linux Workstation Rhel Aus Rhel E4s Rhel Eus Rhel Tus
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T15:40:36.224Z

Reserved: 2020-09-16T00:00:00.000Z

Link: CVE-2020-25647

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-03-03T17:15:11.707

Modified: 2024-11-21T05:18:19.907

Link: CVE-2020-25647

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-03-02T18:00:00Z

Links: CVE-2020-25647 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses