CVE-2021-46790: Debian Linux

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

ntfsck in NTFS-3G through 2021.8.22 has a heap-based buffer overflow involving buffer+512*3-2. NOTE: the upstream position is that ntfsck is deprecated; however, it is shipped by some Linux distributions.

Affected products

• Debian Debian Linux: version 10.0 only; version 11.0 only
• Fedoraproject Fedora: version 35 only; version 36 only
• Tuxera Ntfs-3g: up to and including 2021.8.22

Published 2022-05-02. Last modified 2026-06-17.