{"id":"CVE-2026-91041","revision":"84f66a61fe8f4c16894b3a32d5214b4f","records":[{"revision":"84f66a61fe8f4c16894b3a32d5214b4f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-91041","aliases":[],"title":"FileX fault-tolerant log replay writes past the destination sector when mounting a crafted FAT image","description":"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.","state":0,"publishedAt":"2026-10-20T13:10:14.903+00:00","modifiedAt":"2026-10-20T15:30:22.55+00:00","affected":[{"ecosystem":"Vendor product","name":"FileX","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Eclipse Foundation\",\n                    \"product\": \"Eclipse ThreadX - FileX\",\n                    \"packageName\": \"FileX\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"6.5.1.202602\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"6.5.2.202603\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://github.com/eclipse-threadx/filex/security/advisories/GHSA-c8cj-fj9j-426v"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-91041","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-91041","identifiers":["CVE-2026-91041"]},"retained":false,"historicalAffected":[]}],"coverage":[]}