CVE-2026-91041
FileX fault-tolerant log replay writes past the destination sector when mounting a crafted FAT image
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-787 CWE-1284 |
| Vendor | eclipse foundation |
| Product | eclipse threadx - filex |
| Published | Oct 20, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Eclipse Foundation / Eclipse ThreadX - FileX
0 ≤ 6.5.1.202602
References
Credits
🔍 adawn0106