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CVE-2026-45329

Estado: AnalizadaMedia (6.5)—

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.4 and 6.0, several ESP-TEE secure-service wrappers in esp_secure_services.c and esp_secure_services_iram.c validated only some of the caller-supplied pointer arguments, leaving input pointer arguments unchecked.

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Because the underlying TEE-protected hardware peripherals (e.g., ECC, SHA, SPI) run in RISC-V machine mode (M-mode) with full address-space access, a caller could supply pointers into TEE-exclusive memory as inputs, causing the peripheral to read TEE memory and return results derived from it to the REE. Depending on the wrapper, the result contains raw bytes from TEE memory, a computed function of TEE memory recoverable through repeated calls, or a single bit per call that forms an oracle for incremental disclosure of TEE-resident sensitive data. This issue has been patched in versions 5.5.5 and 6.0.1.

CVSS

Probabilidad de explotación (EPSS)

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 (1)

Espressif — Esp-idf

CWE

Referencias

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      "value": "ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.4 and 6.0, several ESP-TEE secure-service wrappers in esp_secure_services.c and esp_secure_services_iram.c validated only some of the caller-supplied pointer arguments, leaving input pointer arguments unchecked. Because the underlying TEE-protected hardware peripherals (e.g., ECC, SHA, SPI) run in RISC-V machine mode (M-mode) with full address-space access, a caller could supply pointers into TEE-exclusive memory as inputs, causing the peripheral to read TEE memory and return results derived from it to the REE. Depending on the wrapper, the result contains raw bytes from TEE memory, a computed function of TEE memory recoverable through repeated calls, or a single bit per call that forms an oracle for incremental disclosure of TEE-resident sensitive data. This issue has been patched in versions 5.5.5 and 6.0.1."
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      "value": "ESF-IDF es el Framework de Desarrollo de Internet de las Cosas (IoT) de Espressif. En las versiones 5.5.4 y 6.0, varios wrappers de servicios seguros de ESP-TEE en esp_secure_services.c y esp_secure_services_iram.c validaron solo algunos de los argumentos de puntero proporcionados por el llamador, dejando los argumentos de puntero de entrada sin verificar. Debido a que los periféricos de hardware subyacentes protegidos por TEE (por ejemplo, ECC, SHA, SPI) se ejecutan en modo máquina RISC-V (modo M) con acceso completo al espacio de direcciones, un llamador podría proporcionar punteros a memoria exclusiva de TEE como entradas, haciendo que el periférico lea la memoria TEE y devuelva resultados derivados de ella al REE. Dependiendo del wrapper, el resultado contiene bytes sin procesar de la memoria TEE, una función calculada de la memoria TEE recuperable mediante llamadas repetidas, o un solo bit por llamada que forma un oráculo para la divulgación incremental de datos sensibles residentes en TEE. Este problema ha sido parcheado en las versiones 5.5.5 y 6.0.1."
    }
  ],
  "lastModified": "2026-07-23T09:10:00.113",
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