Security readout for executives and security teams
CVE-2021-33287 is a heap buffer overflow in NTFS-3G before 2021.8.22. A crafted NTFS filesystem attribute can trigger memory corruption when read, potentially causing application failure or arbitrary memory writes. The public record does not show active exploitation. Exposure is most likely on systems using NTFS-3G versions earlier than 2021.8.22, especially Linux or Unix-like hosts that mount NTFS volumes, removable media, or disk images. Treat as a moderate patching item. Prioritize endpoints, forensic systems, kiosks, and file-processing servers that may handle untrusted NTFS media or images. Mitigation focus: Upgrade NTFS-3G to version 2021.8.22 or later.; Apply the relevant Debian, Fedora, Gentoo, or vendor security package update.; Avoid mounting untrusted NTFS media or images on vulnerable systems..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2021-33287 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H0.85.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jpCVE reference, mitre
- DSA-4971CVE reference, mitre · vendor-advisory
- FEDORA-2021-e7c8ba6301CVE reference, mitre · vendor-advisory
- FEDORA-2021-5b1dac797bCVE reference, mitre · vendor-advisory
- [debian-lts-announce] 20211116 [SECURITY] [DLA 2819-1] ntfs-3g security updateCVE reference, mitre · mailing-list
- GLSA-202301-01CVE reference, mitre · vendor-advisory
- FEDORA-2021-e7c8ba6301CVE reference, CVE · vendor-advisory, x_transferred
- FEDORA-2021-5b1dac797bCVE reference, CVE · vendor-advisory, x_transferred
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.