CVE-2026-91041

CVE-2026-91041 · FileX fault-tolerant log replay writes past the destination sector when mounting a crafted FAT image

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Mounting an attacker-controlled FAT image with fault tolerance enabled causes an out-of-bounds heap write during log replay. The write is attacker-positioned and attacker-valued, and on a common embedded memory layout it reaches the FX_MEDIA driver callback, giving control of the instruction pointer.

CVSS 7.8 · High · EPSS 0.2%

Published

2026-10-20T13:10:14.903Z

Updated

2026-10-20T15:30:22.550Z

Check your server →