CVE-2019-9755· NVD / CVE Program· CNA mitre

An integer underflow issue exists in ntfs-3g 2017.3.23.

An integer underflow issue exists in ntfs-3g 2017.3.23. A local attacker could potentially exploit this by running /bin/ntfs-3g with specially crafted arguments from a specially crafted directory to cause a heap buffer overflow, resulting in a crash or the ability to execute arbitrary code. In installations where /bin/ntfs-3g is a setuid-root binary, this could lead to a local escalation of privileges.

HighCVSS 7.0 · v3.1—No exploit Fix available

Published: Jun 5, 2019
Updated: Jun 16, 2026
EPSS: 0.5% · 43th percentile
CWE: CWE-191

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Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.0 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.5%

Affected systems

Vendor	Product	CPE
tuxera	ntfs-3g	cpe:2.3:a:tuxera:ntfs-3g
redhat	enterprise linux	cpe:2.3:o:redhat:enterprise_linux
redhat	enterprise linux eus	cpe:2.3:o:redhat:enterprise_linux_eus
redhat	enterprise linux server	cpe:2.3:o:redhat:enterprise_linux_server
redhat	enterprise linux server aus	cpe:2.3:o:redhat:enterprise_linux_server_aus
redhat	enterprise linux server tus	cpe:2.3:o:redhat:enterprise_linux_server_tus

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

redhat enterprise linux8.0
redhat enterprise linux eus8.1
redhat enterprise linux eus8.2
redhat enterprise linux eus8.4
redhat enterprise linux server7.0
redhat enterprise linux server aus8.2
redhat enterprise linux server aus8.4
redhat enterprise linux server tus8.2
redhat enterprise linux server tus8.4
tuxera ntfs-3g2017.3.23

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

+96

Same product

tuxera: all records

Other highest-scoring records for the same primary product.

CVE-2026-40706In NTFS-3G 2022.10.3 before 2026.2.25, a heap buffer overflow exists in ntfs_build_permissions_posix() in acls.c that allows an attacker to
33Monitor
CVE-2017-0358ntfs-3g: Modprobe influence vulnerability via environment variables
32Monitor
CVE-2022-40284A buffer overflow was discovered in NTFS-3G before 2022.10.3.
31Monitor
CVE-2022-30789A crafted NTFS image can cause a heap-based buffer overflow in ntfs_check_log_client_array in NTFS-3G through 2021.8.22.
31Monitor
CVE-2022-30788A crafted NTFS image can cause a heap-based buffer overflow in ntfs_mft_rec_alloc in NTFS-3G through 2021.8.22.
31Monitor
CVE-2022-30786A crafted NTFS image can cause a heap-based buffer overflow in ntfs_names_full_collate in NTFS-3G through 2021.8.22.
31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
almalinux:libiscsi	1.18.0-8.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8	Package registry (OSV)
almalinux:libiscsi-devel	1.18.0-8.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8	Package registry (OSV)
almalinux:libiscsi-utils	1.18.0-8.module_el8.3.0+2048+e7a0a3ea · AlmaLinux:8	Package registry (OSV)
almalinux:netcf	0.2.8-12.module_el8.5.0+2608+72063365 · AlmaLinux:8	Package registry (OSV)
almalinux:netcf-devel	0.2.8-12.module_el8.3.0+2048+e7a0a3ea · AlmaLinux:8	Package registry (OSV)
almalinux:netcf-libs	0.2.8-12.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8	Package registry (OSV)
almalinux:sgabios	1:0.20170427git-3.module_el8.5.0+2608+72063365 · AlmaLinux:8	Package registry (OSV)
almalinux:sgabios-bin	1:0.20170427git-3.module_el8.5.0+2608+72063365 · AlmaLinux:8	Package registry (OSV)
alpine:ntfs-3g	2017.3.23-r2 · Alpine:v3.10	Package registry (OSV)
debian:ntfs-3g	1:2017.3.23AR.3-3 · Debian:12	Package registry (OSV)
opensuse:ntfs-3g_ntfsprogs	2016.2.22-lp150.2.3.1 · openSUSE:Leap 15.0	Package registry (OSV)
red hat:hivex	0:1.3.15-7.module+el8.1.0+3554+1a3a94a6 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:hivex-debuginfo	0:1.3.15-7.module+el8.1.0+3554+1a3a94a6 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:hivex-debugsource	0:1.3.15-7.module+el8.1.0+3554+1a3a94a6 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:hivex-devel	0:1.3.15-7.module+el8.1.0+3554+1a3a94a6 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:libguestfs	1:1.40.2-14.module+el8.1.0+4230+0b6e3259 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:libguestfs-bash-completion	1:1.40.2-14.module+el8.1.0+4230+0b6e3259 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:libguestfs-benchmarking	1:1.40.2-14.module+el8.1.0+4230+0b6e3259 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:libguestfs-benchmarking-debuginfo	1:1.40.2-14.module+el8.1.0+4230+0b6e3259 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:libguestfs-debuginfo	1:1.40.2-14.module+el8.1.0+4230+0b6e3259 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:libguestfs-debugsource	1:1.40.2-14.module+el8.1.0+4230+0b6e3259 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:libguestfs-devel	1:1.40.2-14.module+el8.1.0+4230+0b6e3259 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
red hat:SLOF	0:20190703-1.gitba1ab360.module+el8.1.0+3730+7d905127 · Red Hat:advanced_virtualization:8.1::el8	Package registry (OSV)
rocky linux:libiscsi	0:1.18.0-8.module+el8.7.0+1084+97b81f61 · Rocky Linux:8	Package registry (OSV)
rocky linux:netcf	0:0.2.8-12.module+el8.7.0+1084+97b81f61 · Rocky Linux:8	Package registry (OSV)
rocky linux:sgabios	1:0.20170427git-3.module+el8.7.0+1084+97b81f61 · Rocky Linux:8	Package registry (OSV)
suse:ntfs-3g_ntfsprogs	2013.1.13-5.6.1 · SUSE:Linux Enterprise Desktop 12 SP3	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
Special conditions such as timing or configuration are required.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: High
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-191 · Integer Underflow (Wrap or Wraparound)

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

Fix✗ → ✓Sep 28, 2026, 10:47 PM UTC

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Data sources and verification

CNA: mitre

CVE.org (CNA)Aug 4, 2024, 10:01 PM UTC
NVDJun 16, 2026, 10:44 PM UTC
FIRST EPSSSep 29, 2026, 12:00 AM UTC
OSV / GHSASep 30, 2026, 3:23 AM UTC

Each line is when that source was last processed for this record.

You’re seeing every CVE. Add your stack to narrow the list down to the ones that affect you.

Add your stack

Ecosystem	Package	Affected range	Fix
AlmaLinux:8	libiscsi	before 1.18.0-8.module_el8.5.0+2608+72063365	1.18.0-8.module_el8.5.0+2608+72063365
AlmaLinux:8	libiscsi	before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea	1.18.0-8.module_el8.3.0+2048+e7a0a3ea
AlmaLinux:8	libiscsi	before 1.18.0-8.module_el8.6.0+2880+7d9e3703	1.18.0-8.module_el8.6.0+2880+7d9e3703
AlmaLinux:8	libiscsi-devel	before 1.18.0-8.module_el8.6.0+2880+7d9e3703	1.18.0-8.module_el8.6.0+2880+7d9e3703
AlmaLinux:8	libiscsi-devel	before 1.18.0-8.module_el8.5.0+2608+72063365	1.18.0-8.module_el8.5.0+2608+72063365
AlmaLinux:8	libiscsi-devel	before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea	1.18.0-8.module_el8.3.0+2048+e7a0a3ea
AlmaLinux:8	libiscsi-utils	before 1.18.0-8.module_el8.6.0+2880+7d9e3703	1.18.0-8.module_el8.6.0+2880+7d9e3703
AlmaLinux:8	libiscsi-utils	before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea	1.18.0-8.module_el8.3.0+2048+e7a0a3ea
AlmaLinux:8	libiscsi-utils	before 1.18.0-8.module_el8.5.0+2608+72063365	1.18.0-8.module_el8.5.0+2608+72063365
AlmaLinux:8	netcf	before 0.2.8-12.module_el8.6.0+2880+7d9e3703	0.2.8-12.module_el8.6.0+2880+7d9e3703
AlmaLinux:8	netcf	before 0.2.8-12.module_el8.5.0+2608+72063365	0.2.8-12.module_el8.5.0+2608+72063365
AlmaLinux:8	netcf	before 0.2.8-12.module_el8.3.0+2048+e7a0a3ea	0.2.8-12.module_el8.3.0+2048+e7a0a3ea
AlmaLinux:8	netcf-devel	before 0.2.8-12.module_el8.6.0+2880+7d9e3703	0.2.8-12.module_el8.6.0+2880+7d9e3703
AlmaLinux:8	netcf-devel	before 0.2.8-12.module_el8.5.0+2608+72063365	0.2.8-12.module_el8.5.0+2608+72063365
AlmaLinux:8	netcf-devel	before 0.2.8-12.module_el8.3.0+2048+e7a0a3ea	0.2.8-12.module_el8.3.0+2048+e7a0a3ea
AlmaLinux:8	netcf-libs	before 0.2.8-12.module_el8.6.0+2880+7d9e3703	0.2.8-12.module_el8.6.0+2880+7d9e3703
AlmaLinux:8	netcf-libs	before 0.2.8-12.module_el8.5.0+2608+72063365	0.2.8-12.module_el8.5.0+2608+72063365
AlmaLinux:8	netcf-libs	before 0.2.8-12.module_el8.3.0+2048+e7a0a3ea	0.2.8-12.module_el8.3.0+2048+e7a0a3ea
AlmaLinux:8	sgabios	before 1:0.20170427git-3.module_el8.5.0+2608+72063365	1:0.20170427git-3.module_el8.5.0+2608+72063365
AlmaLinux:8	sgabios	before 1:0.20170427git-3.module_el8.3.0+2048+e7a0a3ea	1:0.20170427git-3.module_el8.3.0+2048+e7a0a3ea
AlmaLinux:8	sgabios-bin	before 1:0.20170427git-3.module_el8.5.0+2608+72063365	1:0.20170427git-3.module_el8.5.0+2608+72063365
AlmaLinux:8	sgabios-bin	before 1:0.20170427git-3.module_el8.6.0+2880+7d9e3703	1:0.20170427git-3.module_el8.6.0+2880+7d9e3703
Alpine:v3.10	ntfs-3g	before 2017.3.23-r2	2017.3.23-r2
Debian:12	ntfs-3g	before 1:2017.3.23AR.3-3	1:2017.3.23AR.3-3