In 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 corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered on the READ path (stat, readdir, open) when processing a security descriptor with multiple ACCESS_DENIED ACEs containing WRITE_OWNER from distinct group SIDs.

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8192-1 advisory.

    Jeffrey Bencteux discovered that NTFS-3G incorrectly handled certain UTF-8 sequences. An attacker could     use this issue to cause NTFS-3G to crash, resulting in a denial of service, or to execute arbitrary code.
    This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2023-52890)

    Andrea Bocchetti discovered that NTFS-3G incorrectly handled certain security descriptors. An attacker     could use this issue to cause NTFS-3G to crash, resulting in a denial of service, or to execute arbitrary     code. (CVE-2026-40706)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In 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 corrupt heap memory in the SUID-root ntfs-3g binary by crafting a     malicious NTFS image. The overflow is triggered on the READ path (stat, readdir, open) when processing a     security descriptor with multiple ACCESS_DENIED ACEs containing WRITE_OWNER from distinct group SIDs.
    (CVE-2026-40706)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Debian 12 / 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6221 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6221-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     April 21, 2026                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : ntfs-3g     CVE ID         : CVE-2026-40706

    Andrea Bocchetti discovered a heap-based buffer overflow in NTFS-3G, a     read-write NTFS driver for FUSE. A local user can take advantage of this     flaw for local root privilege escalation.

    For the oldstable distribution (bookworm), this problem has been fixed     in version 1:2022.10.3-1+deb12u3.

    For the stable distribution (trixie), this problem has been fixed in     version 1:2022.10.3-5+deb13u1.

    We recommend that you upgrade your ntfs-3g packages.

    For the detailed security status of ntfs-3g please refer to its security     tracker page at:
    https://security-tracker.debian.org/tracker/ntfs-3g

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4544 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4544-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                    Thorsten Alteholz     April 21, 2026                                https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : ntfs-3g     Version        : 1:2017.3.23AR.3-4+deb11u5     CVE ID         : CVE-2026-40706


    Andrea Bocchetti discovered a heap-based buffer overflow in NTFS-3G, a     read-write NTFS driver for FUSE. A local user can take advantage of this     flaw for local root privilege escalation.


    For Debian 11 bullseye, this problem has been fixed in version     1:2017.3.23AR.3-4+deb11u5.

    We recommend that you upgrade your ntfs-3g packages.

    For the detailed security status of ntfs-3g please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/ntfs-3g

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
309185	Ubuntu 22.04 LTS / 24.04 LTS / 25.10 : NTFS-3G vulnerabilities (USN-8192-1)	Nessus	Ubuntu Local Security Checks	high
309052	Linux Distros Unpatched Vulnerability : CVE-2026-40706	Nessus	Misc.	high
308348	Debian dsa-6221 : libntfs-3g89 - security update	Nessus	Debian Local Security Checks	high
308347	Debian dla-4544 : libntfs-3g883 - security update	Nessus	Debian Local Security Checks	high

Detections

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CVE-2026-40706

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Tenable Plugins

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