In NTFS-3G through 2026.2.25, an out-of-bounds read exists in ntfs_ir_nill() in libntfs-3g/index.c that allows an attacker to read possibly confidential information in an ntfs-3g process by crafting a malicious NTFS image. This read operation is triggered by creation of a file with a crafted name.

• azl3 ntfs-3g 2022.10.3-3 on Azure Linux 3.0

• azl3 ntfs-3g 2022.10.3-4 on Azure Linux 3.0

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

1. Sep 27, 2026 at 11:11 PM UTC
   • Added affected products: azl3 ntfs-3g 2022.10.3-4 on Azure Linux 3.0.
   • Added fixed versions: 2022.10.3-4.
   • The vendor changed its remediation guidance.

1. Aug 27, 2026 at 1:13 AM UTC
   Published by Microsoft Security Response Center

   The publication date reported by the vendor.

2. Sep 2, 2026 at 11:10 AM UTC
   Added to SecurityAlert

   We collected the advisory from the official source.

3. Sep 13, 2026 at 1:49 AM UTC
   Updated by Microsoft Security Response Center

   The vendor changed the advisory after it was first published.

4. Oct 28, 2026 at 3:45 AM UTC
   Confirmed at the source

   Our collector saw this advisory during a later source check.