HighFix available
ntfs-3g — security advisory
In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_cut_tail() in libntfs-3g/index.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered by creating a file in a specially crafted directory.
- Products
- ntfs-3g
- Affected versions
- 1:2013.1.13AR.1-2ubuntu1, 1:2013.1.13AR.1-2ubuntu2, 1:2013.1.13AR.1-2ubuntu2+esm1, 1:2013.1.13AR.1-2ubuntu2+esm2, 1:2013.1.13AR.1-2ubuntu2+esm3, 1:2013.1.13AR.1-2ubuntu2+esm4, 1:2014.2.15AR.3-3, 1:2015.3.14AR.1-1, 1:2015.3.14AR.1-1build1, 1:2015.3.14AR.1-1ubuntu0.1, 1:2015.3.14AR.1-1ubuntu0.2, 1:2015.3.14AR.1-1ubuntu0.3, 1:2015.3.14AR.1-1ubuntu0.3+esm1, 1:2015.3.14AR.1-1ubuntu0.3+esm2, 1:2015.3.14AR.1-1ubuntu0.3+esm3, 1:2015.3.14AR.1-1ubuntu0.3+esm4, 1:2016.2.22AR.2-2, 1:2017.3.23-2, 1:2017.3.23-2ubuntu0.18.04.1, 1:2017.3.23-2ubuntu0.18.04.2, 1:2017.3.23-2ubuntu0.18.04.3, 1:2017.3.23-2ubuntu0.18.04.4, 1:2017.3.23-2ubuntu0.18.04.5, 1:2017.3.23AR.3-3ubuntu1, 1:2017.3.23AR.3-3ubuntu1.1, 1:2017.3.23AR.3-3ubuntu1.2, 1:2017.3.23AR.3-3ubuntu1.3, 1:2017.3.23AR.3-3ubuntu5, 1:2017.3.23AR.3-3ubuntu6, 1:2021.8.22-3ubuntu1, 1:2021.8.22-3ubuntu1.1, 1:2021.8.22-3ubuntu1.2, 1:2021.8.22-3ubuntu1.3, 1:2022.10.3-1.2ubuntu1, 1:2022.10.3-1.2ubuntu2, 1:2022.10.3-1.2ubuntu3, 1:2022.10.3-1.2ubuntu3.1, 1:2022.10.3-1ubuntu1, 1:2022.10.3-5, 1:2022.10.3-5build1, 1:2022.10.3-5ubuntu1
- Fixed versions
- 1:2021.8.22-3ubuntu1.4, 1:2022.10.3-1.2ubuntu3.2, 1:2022.10.3-5ubuntu1.1
- CVEs
- CVE-2026-46572
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:05 UTC · Revision 1
Source evidence
In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_cut_tail() in libntfs-3g/index.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered by creating a file in a specially crafted directory.
osv:UBUNTU-CVE-2026-46572
ntfs-3g
Fixed versions: Not specified
ntfs-3g
Fixed versions: Not specified
ntfs-3g
Fixed versions: Not specified
ntfs-3g
Fixed versions: Not specified
ntfs-3g
Fixed versions: 1:2021.8.22-3ubuntu1.4
ntfs-3g
Fixed versions: 1:2022.10.3-1.2ubuntu3.2
ntfs-3g
Fixed versions: 1:2022.10.3-5ubuntu1.1
Complete source record
{
"id": "4f30c7be54fc26c1b0112489fa31721cd06b28fa07c9330147c808a1413fca2a",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-46572",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-46572",
"summary": "In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_cut_tail() in libntfs-3g/index.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered by creating a file in a specially crafted directory.",
"evidence": "osv:UBUNTU-CVE-2026-46572",
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{
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{
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{
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{
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{
"value": "1:2017.3.23AR.3-3ubuntu1",
"evidence": "/affected/3/versions"
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{
"value": "1:2017.3.23AR.3-3ubuntu1.1",
"evidence": "/affected/3/versions"
},
{
"value": "1:2017.3.23AR.3-3ubuntu1.2",
"evidence": "/affected/3/versions"
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{
"value": "1:2017.3.23AR.3-3ubuntu1.3",
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{
"value": "1:2017.3.23AR.3-3ubuntu6",
"evidence": "/affected/4/versions"
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{
"value": "1:2021.8.22-3ubuntu1",
"evidence": "/affected/4/versions"
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{
"value": "1:2021.8.22-3ubuntu1.1",
"evidence": "/affected/4/versions"
},
{
"value": "1:2021.8.22-3ubuntu1.2",
"evidence": "/affected/4/versions"
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{
"value": "1:2021.8.22-3ubuntu1.3",
"evidence": "/affected/4/versions"
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]
},
{
"name": {
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"evidence": "/affected/5/package/name"
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{
"value": "1:2022.10.3-1.2ubuntu3.2",
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],
"affected_versions": [
{
"value": "1:2022.10.3-1ubuntu1",
"evidence": "/affected/5/versions"
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{
"value": "1:2022.10.3-1.2ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "1:2022.10.3-1.2ubuntu2",
"evidence": "/affected/5/versions"
},
{
"value": "1:2022.10.3-1.2ubuntu3",
"evidence": "/affected/5/versions"
},
{
"value": "1:2022.10.3-1.2ubuntu3.1",
"evidence": "/affected/5/versions"
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]
},
{
"name": {
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"evidence": "/affected/6/package/name"
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{
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{
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"evidence": "/affected/6/versions"
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{
"value": "1:2022.10.3-5build1",
"evidence": "/affected/6/versions"
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{
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],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-46572",
"aliases": [
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
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"1:2015.3.14AR.1-1ubuntu0.3+esm4"
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"1:2017.3.23-2ubuntu0.18.04.5"
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"database_specific": {
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},
"ecosystem_specific": {
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{
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"1:2017.3.23AR.3-3ubuntu1.1",
"1:2017.3.23AR.3-3ubuntu1.2",
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],
"database_specific": {
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},
"ecosystem_specific": {
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{
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{
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}
},
{
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],
"database_specific": {
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},
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],
"availability": "No subscription required"
}
},
{
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}
],
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],
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},
{
"binary_name": "ntfs-3g",
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],
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}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
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},
{
"fixed": "1:2022.10.3-5ubuntu1.1"
}
]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/ntfs-3g?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
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"1:2022.10.3-5build1",
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},
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{
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{
"binary_name": "ntfs-3g",
"binary_version": "1:2022.10.3-5ubuntu1.1"
}
],
"availability": "No subscription required"
}
}
],
"modified": "2026-10-17T13:00:13.459557044Z",
"provider": "osv",
"upstream": [
"CVE-2026-46572"
],
"references": [
"https://ubuntu.com/security/CVE-2026-46572",
"https://www.cve.org/CVERecord?id=CVE-2026-46572",
"https://ubuntu.com/security/notices/USN-8554-1"
]
},
"related_cves": [
{
"value": "CVE-2026-46572",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360401,
"published_at": "2026-07-15T12:00:00+00:00"
}