{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-55095", "assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c", "state": "PUBLISHED", "assignerShortName": "eclipse", "dateReserved": "2025-08-06T18:56:43.458Z", "datePublished": "2026-01-27T15:34:47.755Z", "dateUpdated": "2026-01-27T15:58:14.494Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Eclipse ThreadX - USBX", "repo": "https://github.com/eclipse-threadx/usbx", "vendor": "Eclipse Foundation", "versions": [{"lessThanOrEqual": "6.4.2", "status": "affected", "version": "0", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "The function <code>_ux_host_class_storage_media_mount()</code>&nbsp;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.<br><br>This recursion occurs in <code>_ux_host_class_storage_partition_read()</code>, which parses up to four partition entries. If an extended partition is found (with type <code>UX_HOST_CLASS_STORAGE_PARTITION_EXTENDED</code>&nbsp;or <code>EXTENDED_LBA_MAPPED</code>), the code invokes:<br><code><code> _ux_host_class_storage_media_mount(storage, sector + _ux_utility_long_get(...));<br>\n</code></code><br>There 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.<br><br>"}], "value": "The function _ux_host_class_storage_media_mount()\u00a0is 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\u00a0or 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."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 4.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-674", "description": "CWE-674 Uncontrolled Recursion", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c", "shortName": "eclipse", "dateUpdated": "2026-01-27T15:34:47.755Z"}, "references": [{"url": "https://github.com/eclipse-threadx/usbx/security/advisories/GHSA-qfmp-wch9-rpv2"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-01-27T15:57:28.543629Z", "id": "CVE-2025-55095", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-27T15:58:14.494Z"}}]}}

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