CVE-2025-21913
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
x86/amd_nb: Use rdmsr_safe() in amd_get_mmconfig_range()
Xen doesn't offer MSR_FAM10H_MMIO_CONF_BASE to all guests. This results in the following warning:
based on quirks for a "PNP0c01" device. Treating MMCFG as disabled is the right course of action, so no change is needed there.
This was most likely exposed by fixing the Xen MSR accessors to not be silently-safe.
Detalles técnicos trazas, registros y código del informe original
unchecked MSR access error: RDMSR from 0xc0010058 at rIP: 0xffffffff8101d19f (xen_do_read_msr+0x7f/0xa0) Call Trace: xen_read_msr+0x1e/0x30 amd_get_mmconfig_range+0x2b/0x80 quirk_amd_mmconfig_area+0x28/0x100 pnp_fixup_device+0x39/0x50 __pnp_add_device+0xf/0x150 pnp_add_device+0x3d/0x100 pnpacpi_add_device_handler+0x1f9/0x280 acpi_ns_get_device_callback+0x104/0x1c0 acpi_ns_walk_namespace+0x1d0/0x260 acpi_get_devices+0x8a/0xb0 pnpacpi_init+0x50/0x80 do_one_initcall+0x46/0x2e0 kernel_init_freeable+0x1da/0x2f0 kernel_init+0x16/0x1b0 ret_from_fork+0x30/0x50 ret_from_fork_asm+0x1b/0x30
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: 0.21%
- Percentil entre todas las CVEs puntuadas: 10
- Fecha de la puntuación: 6/10/2026
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
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/0c65d13bdcc54e5b924ebe790f85a7f01bfe1cb1
- https://git.kernel.org/stable/c/14cb5d83068ecf15d2da6f7d0e9ea9edbcbc0457
- https://git.kernel.org/stable/c/8f43ba5ee498fe037d1570f6868d9aeaf49dda80
- https://git.kernel.org/stable/c/923fede9eae9865af305bcdf8f111e4b62ae4bda
- https://git.kernel.org/stable/c/ebf6a763904e42dabeb2e270ceb0bbe0f825d7ae
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-21913",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"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": "3fac3734c43a2e21fefeb72124d8bd31dff3956f",
"lessThan": "0c65d13bdcc54e5b924ebe790f85a7f01bfe1cb1",
"versionType": "git"
},
{
"status": "affected",
"version": "3fac3734c43a2e21fefeb72124d8bd31dff3956f",
"lessThan": "8f43ba5ee498fe037d1570f6868d9aeaf49dda80",
"versionType": "git"
},
{
"status": "affected",
"version": "3fac3734c43a2e21fefeb72124d8bd31dff3956f",
"lessThan": "ebf6a763904e42dabeb2e270ceb0bbe0f825d7ae",
"versionType": "git"
},
{
"status": "affected",
"version": "3fac3734c43a2e21fefeb72124d8bd31dff3956f",
"lessThan": "923fede9eae9865af305bcdf8f111e4b62ae4bda",
"versionType": "git"
},
{
"status": "affected",
"version": "3fac3734c43a2e21fefeb72124d8bd31dff3956f",
"lessThan": "14cb5d83068ecf15d2da6f7d0e9ea9edbcbc0457",
"versionType": "git"
}
],
"programFiles": [
"arch/x86/kernel/amd_nb.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.1"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.131",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.83",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.19",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.7",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/x86/kernel/amd_nb.c"
],
"defaultStatus": "affected"
}
]
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"affectedData": [
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2025-04-01T16:15:21.893",
"references": [
{
"url": "https://git.kernel.org/stable/c/0c65d13bdcc54e5b924ebe790f85a7f01bfe1cb1",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/14cb5d83068ecf15d2da6f7d0e9ea9edbcbc0457",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8f43ba5ee498fe037d1570f6868d9aeaf49dda80",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/923fede9eae9865af305bcdf8f111e4b62ae4bda",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ebf6a763904e42dabeb2e270ceb0bbe0f825d7ae",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"vulnStatus": "Modified",
"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\nx86/amd_nb: Use rdmsr_safe() in amd_get_mmconfig_range()\n\nXen doesn't offer MSR_FAM10H_MMIO_CONF_BASE to all guests. This results\nin the following warning:\n\n unchecked MSR access error: RDMSR from 0xc0010058 at rIP: 0xffffffff8101d19f (xen_do_read_msr+0x7f/0xa0)\n Call Trace:\n xen_read_msr+0x1e/0x30\n amd_get_mmconfig_range+0x2b/0x80\n quirk_amd_mmconfig_area+0x28/0x100\n pnp_fixup_device+0x39/0x50\n __pnp_add_device+0xf/0x150\n pnp_add_device+0x3d/0x100\n pnpacpi_add_device_handler+0x1f9/0x280\n acpi_ns_get_device_callback+0x104/0x1c0\n acpi_ns_walk_namespace+0x1d0/0x260\n acpi_get_devices+0x8a/0xb0\n pnpacpi_init+0x50/0x80\n do_one_initcall+0x46/0x2e0\n kernel_init_freeable+0x1da/0x2f0\n kernel_init+0x16/0x1b0\n ret_from_fork+0x30/0x50\n ret_from_fork_asm+0x1b/0x30\n\nbased on quirks for a \"PNP0c01\" device. Treating MMCFG as disabled is the\nright course of action, so no change is needed there.\n\nThis was most likely exposed by fixing the Xen MSR accessors to not be\nsilently-safe."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: x86/amd_nb: Utilice rdmsr_safe() en amd_get_mmconfig_range() Xen no ofrece MSR_FAM10H_MMIO_CONF_BASE a todos los invitados. Esto genera la siguiente advertencia: error de acceso a MSR sin marcar: RDMSR desde 0xc0010058 en rIP: 0xffffffff8101d19f (xen_do_read_msr+0x7f/0xa0) Seguimiento de llamadas: xen_read_msr+0x1e/0x30 amd_get_mmconfig_range+0x2b/0x80 quirk_amd_mmconfig_area+0x28/0x100 pnp_fixup_device+0x39/0x50 __pnp_add_device+0xf/0x150 pnp_add_device+0x3d/0x100 pnpacpi_add_device_handler+0x1f9/0x280 acpi_ns_get_device_callback+0x104/0x1c0 acpi_ns_walk_namespace+0x1d0/0x260 acpi_get_devices+0x8a/0xb0 pnpacpi_init+0x50/0x80 do_one_initcall+0x46/0x2e0 kernel_init_freeable+0x1da/0x2f0 kernel_init+0x16/0x1b0 ret_from_fork+0x30/0x50 ret_from_fork_asm+0x1b/0x30 basado en peculiaridades de un dispositivo \"PNP0c01\". Considerar MMCFG como deshabilitado es la acción correcta, por lo que no es necesario realizar ningún cambio. Esto probablemente se expuso al corregir los accesores MSR de Xen para que no fueran silenciosamente seguros."
}
],
"lastModified": "2026-07-14T13:17:26.703",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "550D2D4D-B8BC-42BB-850B-AAAFDBEDAB8B",
"versionEndExcluding": "6.1.131",
"versionStartIncluding": "6.1"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7D9F642F-6E05-4926-B0FE-62F95B7266BC",
"versionEndExcluding": "6.6.83",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "32865E5C-8AE1-4D3D-A64D-299039694A88",
"versionEndExcluding": "6.12.19",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "842F5A44-3E71-4546-B4FD-43B0ACE3F32B",
"versionEndExcluding": "6.13.7",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "186716B6-2B66-4BD0-852E-D48E71C0C85F"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0D3E781C-403A-498F-9DA9-ECEE50F41E75"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "66619FB8-0AAF-4166-B2CF-67B24143261D"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D3D6550E-6679-4560-902D-AF52DCFE905B"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "45B90F6B-BEC7-4D4E-883A-9DBADE021750"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}