CVE-2021-39258

ntfs-3g: Out-of-bounds reads in ntfs_attr_find() and ntfs_external_attr_find()

Published Sep 7, 2021 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Description
A crafted NTFS image can cause out-of-bounds reads in ntfs_attr_find and ntfs_external_attr_find in NTFS-3G < 2021.8.22.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2819-1 ntfs-3g security update
Debian DSA Debian DSA DSA-4971-1 ntfs-3g security update
EUVD EUVD EUVD-2021-25620 A crafted NTFS image can cause out-of-bounds reads in ntfs_attr_find and ntfs_external_attr_find in NTFS-3G < 2021.8.22.
History
Type Values Removed Values Added
Weaknesses CWE-20
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics epss

{'score': 0.00064}

epss

{'score': 0.00067}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Dec 2, 2025, 9:17 PM
Reserved
Aug 17, 2021, 12:00 AM
Status
Modified
Published
Sep 7, 2021, 3:15 PM
Modified
Jun 17, 2026, 4:03 AM
Severity
Moderate
Public date
Aug 30, 2021, 12:00 AM