CVE-2026-91041

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Source

https://cve.org/CVERecord?id=CVE-2026-91041

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91041.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-91041

Aliases

GHSA-c8cj-fj9j-426v

Published

2026-10-20T13:10:14Z

Modified

2026-10-21T03:00:11Z

Severity

7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator

Summary

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

Details

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.

Database specific

{
    "cna_assigner":  "eclipse",
    "cwe_ids":  [
        "CWE-1284",
        "CWE-787"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91041.json"
}

References

Affected packages

Git / github.com/eclipse-threadx/filex

Affected ranges

Type

GIT

Repo

https://github.com/eclipse-threadx/filex

Events

Introduced

Last Affected

b93ac4ae77ee12196f15f341cffb0a9810d2484f

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "6.5.1.202602"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        }
    ]
}

Affected versions

v6.*

v6.4.1_rel

v6.4.2.202503_rel

v6.4.5.202504_rel

v6.5.0.202601_rel

v6.5.1.202602_rel

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91041.json"