LiveActive security incident?Get immediate response
CVE Record

CVE-2021-33286: In NTFS-3G versions < 2021.8.22, when a specially crafted unicode string is supplied in an NTFS image a hea...

In NTFS-3G versions < 2021.8.22, when a specially crafted unicode string is supplied in an NTFS image a heap buffer overflow can occur and allow for code execution.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2021-33286 is a memory corruption flaw in NTFS-3G before 2021.8.22. A malicious NTFS disk image or removable drive could trigger a heap buffer overflow through crafted Unicode data, potentially leading to code execution when processed by vulnerable NTFS-3G software. Exposure is most likely on Linux or Unix-like systems using NTFS-3G to mount NTFS volumes, especially desktops, file-ingestion services, backup systems, forensic workstations, and environments that process untrusted removable media or disk images. Prioritize patching systems that automatically mount media or handle external disk images. The business risk is code execution from a crafted filesystem image, but public evidence in the bundle does not show active exploitation. Mitigation focus: Upgrade NTFS-3G to 2021.8.22 or a distribution-fixed package.; Apply Debian, Gentoo, or other vendor security updates where applicable.; Disable automatic mounting of untrusted NTFS removable media..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-33286 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
1ADP providers
5Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.