CVE-2026-91041 — FileX fault-tolerant log replay writes past the destination sector when mounting a crafted FAT image
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…
Published: 2026-10-20 · CVSS: 7.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7