CVE-2026-10684

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-10684", "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad", "state": "PUBLISHED", "assignerShortName": "zephyr", "dateReserved": "2026-06-02T15:26:21.656Z", "datePublished": "2026-07-29T18:03:08.771Z", "dateUpdated": "2026-08-31T23:13:09.624Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad", "shortName": "zephyr", "dateUpdated": "2026-08-31T23:13:09.624Z"}, "title": "Out-of-bounds read in coredump shell when printing stored-dump target code", "descriptions": [{"lang": "en", "value": "In subsys/debug/coredump/coredump_shell.c, print_coredump_hdr() used the 16-bit tgt_code field of a stored Zephyr coredump header directly as an index into coredump_target_code2str[], a fixed 7-element array of string pointers, with no bounds check.\n\nA stored coredump whose tgt_code is >= 7 causes an out-of-bounds read of a char* up to ~64K entries past the array; that value is passed as the %s argument to shell_print, which dereferences and walks it as a string. The result is either disclosure of device memory contents to the shell user or a crash when the out-of-bounds pointer is unmapped.\n\nThe defect is reached via the coredump print shell command (cmd_coredump_print_stored_dump -> pretty_print_coredump -> parse_and_print_coredump -> print_coredump_hdr). The tgt_code field is device-generated and in-range during normal crash handling, so triggering requires local shell access plus the ability to stage or corrupt the stored coredump in the flash/in-memory backend.\n\nIntroduced in v4.2.0 (commit 13abd7fe730) and present through v4.4.0; fixed by clamping out-of-range codes to the 'unknown' (index 0) entry."}], "affected": [{"vendor": "zephyrproject", "product": "zephyr", "collectionURL": "https://github.com/zephyrproject-rtos/zephyr", "packageName": "zephyr", "defaultStatus": "unaffected", "programFiles": ["subsys/debug/coredump/coredump_shell.c"], "versions": [{"version": "4.2.0", "status": "affected", "versionType": "semver", "lessThan": "4.3.1"}, {"version": "4.4.0", "status": "affected", "versionType": "semver", "lessThan": "4.4.2"}]}], "references": [{"url": "https://github.com/zephyrproject-rtos/zephyr/commit/a9226324e8bd1f8adecafb1b6e0603f781dc750c", "name": "Fix commit", "tags": ["patch"]}, {"url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-9fw2-4429-49q8", "name": "GHSA-9fw2-4429-49q8"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L", "baseScore": 3, "baseSeverity": "LOW"}}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "bounds", "cweId": "CWE-125", "type": "CWE"}]}], "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-29T18:47:12.610944Z", "id": "CVE-2026-10684", "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": "2026-07-29T18:47:20.793Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-10684", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-29T18:47:12.610944Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-29T18:47:16.699Z"}}], "cna": {"title": "Out-of-bounds read in coredump shell when printing stored-dump target code", "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "baseScore": 3, "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L"}}], "affected": [{"vendor": "zephyrproject", "product": "zephyr", "versions": [{"status": "affected", "version": "4.2.0", "lessThan": "4.3.1", "versionType": "semver"}, {"status": "affected", "version": "4.4.0", "lessThan": "4.4.2", "versionType": "semver"}], "packageName": "zephyr", "programFiles": ["subsys/debug/coredump/coredump_shell.c"], "collectionURL": "https://github.com/zephyrproject-rtos/zephyr", "defaultStatus": "unaffected"}], "references": [{"url": "https://github.com/zephyrproject-rtos/zephyr/commit/a9226324e8bd1f8adecafb1b6e0603f781dc750c", "name": "Fix commit", "tags": ["patch"]}, {"url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-9fw2-4429-49q8", "name": "GHSA-9fw2-4429-49q8"}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "In subsys/debug/coredump/coredump_shell.c, print_coredump_hdr() used the 16-bit tgt_code field of a stored Zephyr coredump header directly as an index into coredump_target_code2str[], a fixed 7-element array of string pointers, with no bounds check.\n\nA stored coredump whose tgt_code is >= 7 causes an out-of-bounds read of a char* up to ~64K entries past the array; that value is passed as the %s argument to shell_print, which dereferences and walks it as a string. The result is either disclosure of device memory contents to the shell user or a crash when the out-of-bounds pointer is unmapped.\n\nThe defect is reached via the coredump print shell command (cmd_coredump_print_stored_dump -> pretty_print_coredump -> parse_and_print_coredump -> print_coredump_hdr). The tgt_code field is device-generated and in-range during normal crash handling, so triggering requires local shell access plus the ability to stage or corrupt the stored coredump in the flash/in-memory backend.\n\nIntroduced in v4.2.0 (commit 13abd7fe730) and present through v4.4.0; fixed by clamping out-of-range codes to the 'unknown' (index 0) entry."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "bounds"}]}], "providerMetadata": {"orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad", "shortName": "zephyr", "dateUpdated": "2026-08-31T23:13:09.624Z"}}}, "cveMetadata": {"cveId": "CVE-2026-10684", "state": "PUBLISHED", "dateUpdated": "2026-08-31T23:13:09.624Z", "dateReserved": "2026-06-02T15:26:21.656Z", "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad", "datePublished": "2026-07-29T18:03:08.771Z", "assignerShortName": "zephyr"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://github.com/zephyrproject-rtos/zephyr", "defaultStatus": "unaffected", "packageName": "zephyr", "product": "zephyr", "programFiles": ["subsys/debug/coredump/coredump_shell.c"], "vendor": "zephyrproject", "versions": [{"lessThan": "4.3.1", "status": "affected", "version": "4.2.0", "versionType": "semver"}, {"lessThan": "4.4.2", "status": "affected", "version": "4.4.0", "versionType": "semver"}]}], "source": "vulnerabilities@zephyrproject.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In subsys/debug/coredump/coredump_shell.c, print_coredump_hdr() used the 16-bit tgt_code field of a stored Zephyr coredump header directly as an index into coredump_target_code2str[], a fixed 7-element array of string pointers, with no bounds check.\n\nA stored coredump whose tgt_code is >= 7 causes an out-of-bounds read of a char* up to ~64K entries past the array; that value is passed as the %s argument to shell_print, which dereferences and walks it as a string. The result is either disclosure of device memory contents to the shell user or a crash when the out-of-bounds pointer is unmapped.\n\nThe defect is reached via the coredump print shell command (cmd_coredump_print_stored_dump -> pretty_print_coredump -> parse_and_print_coredump -> print_coredump_hdr). The tgt_code field is device-generated and in-range during normal crash handling, so triggering requires local shell access plus the ability to stage or corrupt the stored coredump in the flash/in-memory backend.\n\nIntroduced in v4.2.0 (commit 13abd7fe730) and present through v4.4.0; fixed by clamping out-of-range codes to the 'unknown' (index 0) entry."}, {"lang": "es", "value": "En subsys/debug/coredump/coredump_shell.c, print_coredump_hdr() usaba el campo tgt_code de 16 bits de un encabezado de volcado de memoria (coredump) de Zephyr almacenado directamente como un \u00edndice en coredump_target_code2str[], un array fijo de 7 elementos de punteros a cadenas, sin verificaci\u00f3n de l\u00edmites.\n\nUn volcado de memoria almacenado cuyo tgt_code es >= 7 provoca una lectura fuera de l\u00edmites de un char hasta ~64K entradas m\u00e1s all\u00e1 del array; ese valor se pasa como el argumento %s a shell_print, que lo desreferencia y lo recorre como una cadena. El resultado es la divulgaci\u00f3n del contenido de la memoria del dispositivo al usuario de la shell o un fallo (crash) cuando el puntero fuera de l\u00edmites no est\u00e1 mapeado.\n\nEl defecto se alcanza a trav\u00e9s del comando de shell de impresi\u00f3n de volcado de memoria (cmd_coredump_print_stored_dump -> pretty_print_coredump -> parse_and_print_coredump -> print_coredump_hdr). El campo tgt_code es generado por el dispositivo y est\u00e1 dentro del rango durante el manejo normal de fallos, por lo que su activaci\u00f3n requiere acceso local a la shell m\u00e1s la capacidad de preparar o corromper el volcado de memoria almacenado en el backend de flash/en memoria.\n\nIntroducido en v4.2.0 (commit 13abd7fe730) y presente hasta v4.4.0; corregido al limitar los c\u00f3digos fuera de rango a la entrada \u2019unknown\u2019 (\u00edndice 0)."}], "id": "CVE-2026-10684", "lastModified": "2026-10-24T13:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.0, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 0.5, "impactScore": 2.5, "source": "vulnerabilities@zephyrproject.org", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-10684", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-29T18:47:12.610944Z", "version": "2.0.3"}}]}, "published": "2026-07-29T19:16:43.677", "references": [{"source": "vulnerabilities@zephyrproject.org", "url": "https://github.com/zephyrproject-rtos/zephyr/commit/a9226324e8bd1f8adecafb1b6e0603f781dc750c"}, {"source": "vulnerabilities@zephyrproject.org", "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-9fw2-4429-49q8"}], "sourceIdentifier": "vulnerabilities@zephyrproject.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "vulnerabilities@zephyrproject.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.2.0,4.3.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.4.0,4.4.1]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "zephyr", "source": "cna", "vendor": "zephyrproject"}, "product": "zephyr", "vendor": "zephyrproject"}], "created": "2026-07-29T19:30:05.969200+00:00", "updated": "2026-08-03T13:15:05.180848+00:00", "vendors": ["zephyrproject", "zephyrproject$PRODUCT$zephyr"]}