CVE-2021-39255
HIGH
7.8
CVSS Score
Published: September 7, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 04:03 AM UTC
2 products affected across 2 vendorsDebian LinuxNTFS-3G
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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit
Description
A crafted NTFS image can trigger an out-of-bounds read, caused by an invalid attribute in ntfs_attr_find_in_attrdef, in NTFS-3G < 2021.8.22.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (5)
Release NotesThird Party Advisory
Source: [email protected]
https://github.com/tuxera/ntfs-3g/releasesThird Party Advisory
Source: [email protected]
https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jpMailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/11/msg00013.htmlVendor AdvisoryThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202301-01Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-4971SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-125CWE-20
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