CVE-2025-38526
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
ice: add NULL check in eswitch lag check
The function ice_lag_is_switchdev_running() is being called from outside of the LAG event handler code. This results in the lag->upper_netdev being NULL sometimes. To avoid a NULL-pointer dereference, there needs to be a check before it is dereferenced.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.37%
- Percentil entre todas las CVEs puntuadas: 28
- 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).
Tecnologías afectadas (1)
CWE
- CWE-476
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-38526",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Secondary",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"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": "776fe19953b0e0af00399e50fb3b205101d4b3c1",
"lessThan": "27591d926191e42b2332e4bad3bcd3a49def393b",
"versionType": "git"
},
{
"status": "affected",
"version": "776fe19953b0e0af00399e50fb3b205101d4b3c1",
"lessThan": "5a5d64f0eec82076b2c09fee2195d640cfbe3379",
"versionType": "git"
},
{
"status": "affected",
"version": "776fe19953b0e0af00399e50fb3b205101d4b3c1",
"lessThan": "245917d3c5ed7c6ae720302b64eac5c6f0c85177",
"versionType": "git"
},
{
"status": "affected",
"version": "776fe19953b0e0af00399e50fb3b205101d4b3c1",
"lessThan": "3ce58b01ada408b372f15b7c992ed0519840e3cf",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/intel/ice/ice_lag.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.100",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.40",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.15.8",
"versionType": "semver",
"lessThanOrEqual": "6.15.*"
},
{
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/intel/ice/ice_lag.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-08-16T12:15:28.060",
"references": [
{
"url": "https://git.kernel.org/stable/c/245917d3c5ed7c6ae720302b64eac5c6f0c85177",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/27591d926191e42b2332e4bad3bcd3a49def393b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3ce58b01ada408b372f15b7c992ed0519840e3cf",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5a5d64f0eec82076b2c09fee2195d640cfbe3379",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-476"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: add NULL check in eswitch lag check\n\nThe function ice_lag_is_switchdev_running() is being called from outside of\nthe LAG event handler code. This results in the lag->upper_netdev being\nNULL sometimes. To avoid a NULL-pointer dereference, there needs to be a\ncheck before it is dereferenced."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ice: añadir comprobación NULL en la comprobación de retardo de eswitch. La función ice_lag_is_switchdev_running() se llama desde fuera del código del controlador de eventos LAG. Esto provoca que lag->upper_netdev sea NULL en ocasiones. Para evitar una desreferencia de puntero NULL, es necesario realizar una comprobación antes de desreferenciarlo."
}
],
"lastModified": "2026-07-30T06:23:24.063",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4C0E74C5-B30A-46CB-90D1-E99E764ADD69",
"versionEndExcluding": "6.6.100",
"versionStartIncluding": "6.6.1"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0099D5A4-B157-4D36-8858-982C7D579030",
"versionEndExcluding": "6.12.40",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C7AFE5B0-F3B1-4D30-B8BF-EDA0385C4746",
"versionEndExcluding": "6.15.8",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.6:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E346B162-D566-4E62-ABDE-ECBFB21B8BFD"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc6:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E114E9DD-F7E1-40CC-AAD5-F14E586CB2E6"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc7:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DC5BD782-474C-4A68-AED7-6EC818FF89AE"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "09709862-E348-4378-8632-5A7813EDDC86"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "415BF58A-8197-43F5-B3D7-D1D63057A26E"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A0517869-312D-4429-80C2-561086E1421C"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "85421F4E-C863-4ABF-B4B4-E887CC2F7F92"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc6:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3827F0D4-5FEE-4181-B267-5A45E7CA11FC"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}