High
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, and on a common embedded memory layout it reaches the FX_MEDIA driver callback, giving control of the instruction pointer.
Announced Group revision 1
Original source ↗CVE-2026-91041
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-91041
Eclipse ThreadX - FileX
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Eclipse Foundation",
"product": "Eclipse ThreadX - FileX",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "custom",
"lessThanOrEqual": "6.5.1.202602"
},
{
"status": "unaffected",
"version": "6.5.2.202603"
}
],
"packageName": "FileX",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-91041
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #42262 · Revision 1
- Added to Heist Feed
- Publisher date