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CVE-2025-39786

Estado: ModificadaAlta (7.1)—

In the Linux kernel, the following vulnerability has been resolved:

iio: adc: ad7173: fix channels index for syscalib_mode

Fix the index used to look up the channel when accessing the syscalib_mode attribute. The address field is a 0-based index (same as scan_index) that it used to access the channel in the ad7173_channels array throughout the driver. The channels field, on the other hand, may not match the address field depending on the channel configuration specified in the device tree and could result in an out-of-bounds access.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:L/PR:L sin UI indica escalada local. Out-of-bounds en kernel driver permite ejecución de código o DoS; la lectura ilimitada (CWE-125) en syscalib_mode puede ejecutar instrucciones arbitrarias o causar pánico del kernel.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationFilter Network Traffic

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2025-39786",
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        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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  "published": "2025-09-11T17:15:44.770",
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: ad7173: fix channels index for syscalib_mode\n\nFix the index used to look up the channel when accessing the\nsyscalib_mode attribute. The address field is a 0-based index (same\nas scan_index) that it used to access the channel in the\nad7173_channels array throughout the driver. The channels field, on\nthe other hand, may not match the address field depending on the\nchannel configuration specified in the device tree and could result\nin an out-of-bounds access."
    }
  ],
  "lastModified": "2026-07-30T06:23:45.110",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}