{"id":"CVE-2025-55095","details":"The function _ux_host_class_storage_media_mount() is responsible for mounting partitions on a USB mass storage device. When it encounters an extended partition entry in the partition table, it recursively calls itself to mount the next logical partition.\n\nThis recursion occurs in _ux_host_class_storage_partition_read(), which parses up to four partition entries. If an extended partition is found (with type UX_HOST_CLASS_STORAGE_PARTITION_EXTENDED or EXTENDED_LBA_MAPPED), the code invokes:\n            _ux_host_class_storage_media_mount(storage, sector + _ux_utility_long_get(...));\n\n\nThere is no limit on the recursion depth or tracking of visited sectors. As a result, a malicious or malformed disk image can include cyclic or excessively deep chains of extended partitions, causing the function to recurse until stack overflow occurs.","aliases":["GHSA-qfmp-wch9-rpv2"],"modified":"2026-07-15T01:49:20.358085467Z","published":"2026-01-27T15:34:47.755Z","database_specific":{"cwe_ids":["CWE-121","CWE-674"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55095.json","cna_assigner":"eclipse"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55095.json"},{"type":"ADVISORY","url":"https://github.com/eclipse-threadx/usbx/security/advisories/GHSA-qfmp-wch9-rpv2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55095"},{"type":"PACKAGE","url":"https://github.com/eclipse-threadx/usbx"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/eclipse-threadx/usbx","events":[{"introduced":"0"},{"last_affected":"cfdd55c48a2f44afa55cdb198fe65ddb0c8565ba"}],"database_specific":{"cpe":"cpe:2.3:a:eclipse:threadx_usbx:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"6.4.2"}],"source":["AFFECTED_FIELD","CPE_RANGE"]}}],"versions":["v6.4.2_rel","v6.4.1_rel","v6.4.0_rel","v6.3.0_rel","v6.2.1_rel","v6.2.0_rel","v6.1.12_rel","v6.1.11_rel","v6.1.10_rel","v6.1.9_rel","v6.1.8_rel","v6.1.7_rel","v6.1.6_rel","v6.1.5_rel","v6.1.4_rel","v6.1.3_rel","v6.1.2_rel","v6.1_rel","v6.0.2_rel","v6.0.1_rel","v6.0_rel"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-55095.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L"}]}