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USN-8554-1: NTFS

USN-8554-1: NTFS

Ubuntu July 16, 2026

It was discovered that NTFS-3G had a heap buffer overflow when reading certain NTFS images. A local attacker could possibly use this issue to execute arbitrary code. ( CVE-2026-42616 ) It was discovered that NTFS-3G had multiple heap buffer overflows when processing certain NTFS images. A local attacker could possibly use these issues to execute arbitrary code. ( CVE-2026-42617 , CVE-2026-42618 , CVE-2026-46569 , CVE-2026-46570 , CVE-2026-46572 , CVE-2026-56135 ) It was discovered that NTFS-3G had out-of-bounds reads when processing certain NTFS images. A local attacker could possibly use these issues to obtain sensitive information. (

It was discovered that NTFS-3G had a heap buffer overflow when reading certain NTFS images. A local attacker could possibly use this issue to execute arbitrary code. ( CVE-2026-42616 )

It was discovered that NTFS-3G had multiple heap buffer overflows when processing certain NTFS images. A local attacker could possibly use these issues to execute arbitrary code. ( CVE-2026-42617 , CVE-2026-42618 , CVE-2026-46569 , CVE-2026-46570 , CVE-2026-46572 , CVE-2026-56135 )

It was discovered that NTFS-3G had out-of-bounds reads when processing certain NTFS images. A local attacker could possibly use these issues to obtain sensitive information. (

It was discovered that NTFS-3G had a heap buffer overflow when reading certain NTFS images. A local attacker could possibly use this issue to execute arbitrary code. ( CVE-2026-42616 ) It was discovered that NTFS-3G had multiple heap buffer overflows when processing certain NTFS images. A local attacker could possibly use these issues to execute arbitrary code. ( CVE-2026-42617 , CVE-2026-42618 , CVE-2026-46569 , CVE-2026-46570 , CVE-2026-46572 , CVE-2026-56135 ) It was discovered that NTFS-3G had out-of-bounds reads when processing certain NTFS images. A local attacker could possibly use these issues to obtain sensitive information. ( CVE-2026-46571 , CVE-2026-56136 )

It was discovered that NTFS-3G had a heap buffer overflow when reading certain NTFS images. A local attacker could possibly use this issue to execute arbitrary code. ( CVE-2026-42616 )

It was discovered that NTFS-3G had multiple heap buffer overflows when processing certain NTFS images. A local attacker could possibly use these issues to execute arbitrary code. ( CVE-2026-42617 , CVE-2026-42618 , CVE-2026-46569 , CVE-2026-46570 , CVE-2026-46572 , CVE-2026-56135 )

It was discovered that NTFS-3G had out-of-bounds reads when processing certain NTFS images. A local attacker could possibly use these issues to obtain sensitive information. ( CVE-2026-46571 , CVE-2026-56136 )

In general, a standard system update will make all the necessary changes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.