CVE-2021-27504
Estado: ModificadaAlta (7.8)—
Texas Instruments devices running FREERTOS, malloc returns a valid pointer to a small buffer on extremely large values, which can trigger an integer overflow vulnerability in 'malloc' for FreeRTOS, resulting in code execution.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.28%
- Percentil entre todas las CVEs puntuadas: 19
- Fecha de la puntuación: 4/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (6)
CWE
- CWE-190
- CWE-190
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-27504",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Secondary",
"source": "ics-cert@hq.dhs.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.4,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.4
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "ics-cert@hq.dhs.gov",
"affectedData": [
{
"vendor": "Texas Instruments",
"product": "CC32XX",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "4.40.00.07",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Texas Instruments",
"product": "SimpleLink MSP432E4XX",
"versions": [
{
"status": "affected",
"version": "all versions"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Texas Instruments",
"product": "SimpleLink-CC13XX",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "4.40.00",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Texas Instruments",
"product": "SimpleLink-CC26XX",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "4.40.00",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Texas Instruments",
"product": "SimpleLink-CC32XX",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "4.10.03",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2023-11-21T18:15:07.713",
"references": [
{
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"source": "ics-cert@hq.dhs.gov"
},
{
"url": "https://www.ti.com/tool/TI-RTOS-MCU",
"tags": [
"Product"
],
"source": "ics-cert@hq.dhs.gov"
},
{
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.ti.com/tool/TI-RTOS-MCU",
"tags": [
"Product"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "ics-cert@hq.dhs.gov",
"description": [
{
"lang": "en",
"value": "CWE-190"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-190"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Texas Instruments devices running FREERTOS, malloc returns a valid \npointer to a small buffer on extremely large values, which can trigger \nan integer overflow vulnerability in 'malloc' for FreeRTOS, resulting in\n code execution."
},
{
"lang": "es",
"value": "En los dispositivos de Texas Instruments que ejecutan FREERTOS, malloc devuelve un puntero válido a un pequeño búfer en valores extremadamente grandes, lo que puede desencadenar una vulnerabilidad de desbordamiento de enteros en 'malloc' para FreeRTOS, lo que resulta en la ejecución de código."
}
],
"lastModified": "2026-06-17T03:44:59.673",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:amazon:freertos:10.4.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F471FD19-638D-46A4-A68D-C4BDA7FA26EE"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ti:simplelink_cc13xx_software_development_kit:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "97B4CA27-1024-4347-8C0B-A8848950CB5B",
"versionEndExcluding": "4.40.00"
},
{
"criteria": "cpe:2.3:a:ti:simplelink_cc26xx_software_development_kit:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BCC0C102-7DCB-4959-91C6-ECA8429BB1A2",
"versionEndExcluding": "4.40.00"
},
{
"criteria": "cpe:2.3:a:ti:simplelink_cc32xx_software_development_kit:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "61CF4AB1-347E-42F9-89FB-350445ED7E70",
"versionEndExcluding": "4.10.03"
},
{
"criteria": "cpe:2.3:a:ti:simplelink_msp432e401y:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "538BC9EE-7C51-41CC-9A58-5FEB3261EF7C"
},
{
"criteria": "cpe:2.3:a:ti:simplelink_msp432e411y:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EC7C493D-DAC1-4FBD-A056-C9D5CF98F9E0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "ics-cert@hq.dhs.gov"
}