CVE-2021-35267

HIGHNVD 7.87.8—

7.8

NTFS-3G versions < 2021.8.22, a stack buffer overflow can occur when correcting differences in the MFT and MFTMirror allowing for code execution or escalation of privileges when setuid-root.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 29.9%
KEV: Not listed

Published

September 7, 2021

Last Modified

November 21, 2024

References (16)

cve@mitrehttp://ntfs-3g.com
cve@mitrehttp://www.openwall.com/lists/oss-security/2021/08/30/1
cve@mitrehttps://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp
cve@mitrehttps://lists.debian.org/debian-lts-announce/2021/11/msg00013.html
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/
cve@mitrehttps://security.gentoo.org/glsa/202301-01
cve@mitrehttps://www.debian.org/security/2021/dsa-4971
af854a3a-2127-422b-91ae-364da2661108http://ntfs-3g.com
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/08/30/1
af854a3a-2127-422b-91ae-364da2661108https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202301-01

Patch Availability(3)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	virt:rhel-8060020220408104655.d63f516d	2022-05-10	redhat
redhat	virt-devel:8.2-8020120210917153657.863bb0db	2021-09-30	redhat
redhat	virt-devel:av-8040020210922084349.522a0ee4	2021-09-30	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-787Out-of-bounds Write

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-35267?

CVE-2021-35267 is a high vulnerability published on September 7, 2021. NTFS-3G versions < 2021.8.22, a stack buffer overflow can occur when correcting differences in the MFT and MFTMirror allowing for code execution or escalation of privileges when setuid-root.

When was CVE-2021-35267 disclosed?

CVE-2021-35267 was first published in the National Vulnerability Database on September 7, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-35267 actively exploited?

CVE-2021-35267 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-35267?

CVE-2021-35267 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2021-35267?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-35267, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-35267

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Is Your Infrastructure Affected by CVE-2021-35267?

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CVE-2021-35267

Published

Last Modified

References (16)

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-35267?

Same vendor

Same CWE

CVE-2021-35267

📅 Published

🔄 Last Modified

🔗 References (16)

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-35267?

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Frequently asked(5)

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