CVE-2026-43307
In the Linux kernel, the following vulnerability has been resolved:
iio: accel: adxl380: Avoid reading more entries than present in FIFO
The interrupt handler reads FIFO entries in batches of N samples, where N is the number of scan elements that have been enabled. However, the sensor fills the FIFO one sample at a time, even when more than one channel is enabled. Therefore,the number of entries reported by the FIFO status registers may not be a multiple of N; if this number is not a multiple, the number of entries read from the FIFO may exceed the number of entries actually present.
To fix the above issue, round down the number of FIFO entries read from the status registers so that it is always a multiple of N.
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: 0.18%
- Percentil entre todas las CVEs puntuadas: 6
- Fecha de la puntuación: 5/10/2026
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).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation75 % - Impacto principal
T1499.004Application or System Exploitationimpact60 %
Vulnerabilidad local (AV:L, PR:L) sin interacción que causa lectura fuera de límites en FIFO del kernel, permitiendo DoS por agotamiento de recursos o corrupción de memoria con impacto en disponibilidad.
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
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-43307",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Secondary",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"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": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d",
"lessThan": "a40f316085985f916ba1599fc303fdbc6a078e86",
"versionType": "git"
},
{
"status": "affected",
"version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d",
"lessThan": "a8e88edfd69df7b63c882aa53e61e7c078806ad7",
"versionType": "git"
},
{
"status": "affected",
"version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d",
"lessThan": "f42ddb2945ae4ce2b6f1c2e7aae9f14455a734d3",
"versionType": "git"
},
{
"status": "affected",
"version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d",
"lessThan": "c1b14015224cfcccd5356333763f2f4f401bd810",
"versionType": "git"
}
],
"programFiles": [
"drivers/iio/accel/adxl380.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.75",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.16",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.6",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/iio/accel/adxl380.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-05-08T14:16:38.027",
"references": [
{
"url": "https://git.kernel.org/stable/c/a40f316085985f916ba1599fc303fdbc6a078e86",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/a8e88edfd69df7b63c882aa53e61e7c078806ad7",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c1b14015224cfcccd5356333763f2f4f401bd810",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f42ddb2945ae4ce2b6f1c2e7aae9f14455a734d3",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: accel: adxl380: Avoid reading more entries than present in FIFO\n\nThe interrupt handler reads FIFO entries in batches of N samples, where N\nis the number of scan elements that have been enabled. However, the sensor\nfills the FIFO one sample at a time, even when more than one channel is\nenabled. Therefore,the number of entries reported by the FIFO status\nregisters may not be a multiple of N; if this number is not a multiple, the\nnumber of entries read from the FIFO may exceed the number of entries\nactually present.\n\nTo fix the above issue, round down the number of FIFO entries read from the\nstatus registers so that it is always a multiple of N."
}
],
"lastModified": "2026-06-17T10:49:21.137",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "91F4DDF8-DCB5-433F-9A96-EB7DD49CF8DB",
"versionEndExcluding": "6.12.75",
"versionStartIncluding": "6.12"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B",
"versionEndExcluding": "6.18.16",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67",
"versionEndExcluding": "6.19.6",
"versionStartIncluding": "6.19"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}