CVE-2021-42554 (GCVE-0-2021-42554)
Vulnerability from cvelistv5 – Published: 2022-02-03 01:40 – Updated: 2026-08-11 12:22
VLAI
EPSS
VEX
Summary
An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
Severity
8.2 (High)
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://www.insyde.com/security-pledge | x_refsource_MISC |
| https://www.insyde.com/security-pledge/SA-2022012 | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022021… | x_refsource_CONFIRM |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://www.kb.cert.org/vuls/id/796611 | |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
18 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Siemens | RUGGEDCOM APE1808 - BIOS |
Affected:
0 , < V1.0.202N
(custom)
|
guessed | |
| Siemens | SIMATIC Field PG M5 |
Affected:
0 , < V22.01.10
(custom)
|
guessed | |
| Siemens | SIMATIC Field PG M6 |
Affected:
0 , < V26.01.13
(custom)
|
guessed | |
| Siemens | SIMATIC IPC127E |
Affected:
0 , < V27.01.09
(custom)
|
guessed | |
| Siemens | SIMATIC IPC227G |
Affected:
0 , < V28.01.04
(custom)
|
guessed | |
| Siemens | SIMATIC IPC277G |
Affected:
0 , < V28.01.04
(custom)
|
guessed | |
| Siemens | SIMATIC IPC277G PRO |
Affected:
0 , < V28.01.04
(custom)
|
guessed | |
| Siemens | SIMATIC IPC327G |
Affected:
0 , < V28.01.04
(custom)
|
guessed | |
| Siemens | SIMATIC IPC377G |
Affected:
0 , < V28.01.04
(custom)
|
guessed | |
| Siemens | SIMATIC IPC427E |
Affected:
0 , < V21.01.17
(custom)
|
guessed | |
| Siemens | SIMATIC IPC477E |
Affected:
0 , < V21.01.17
(custom)
|
guessed | |
| Siemens | SIMATIC IPC477E PRO |
Affected:
0 , < V21.01.17
(custom)
|
guessed | |
| Siemens | SIMATIC IPC627E |
Affected:
0 , < V25.02.12
(custom)
|
guessed | |
| Siemens | SIMATIC IPC647E |
Affected:
0 , < V25.02.12
(custom)
|
guessed | |
| Siemens | SIMATIC IPC677E |
Affected:
0 , < V25.02.12
(custom)
|
guessed | |
| Siemens | SIMATIC IPC847E |
Affected:
0 , < V25.02.12
(custom)
|
guessed | |
| Siemens | SIMATIC ITP1000 |
Affected:
0 , < V23.01.10
(custom)
|
guessed | |
| Siemens | SIPLUS IPC427E |
Affected:
0 , < V21.01.17
(custom)
|
guessed |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-04T19:12:43.116Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.insyde.com/security-pledge"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.insyde.com/security-pledge/SA-2022012"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://security.netapp.com/advisory/ntap-20220216-0007/"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
},
{
"url": "https://www.kb.cert.org/vuls/id/796611"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "RUGGEDCOM APE1808 - BIOS",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V1.0.202N",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC Field PG M5",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V22.01.10",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC Field PG M6",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V26.01.13",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC127E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V27.01.09",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC227G",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V28.01.04",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC277G",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V28.01.04",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC\u00a0IPC277G PRO",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V28.01.04",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC327G",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V28.01.04",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC377G",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V28.01.04",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC427E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V21.01.17",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC477E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V21.01.17",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC477E PRO",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V21.01.17",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC627E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V25.02.12",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC647E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V25.02.12",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC677E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V25.02.12",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC847E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V25.02.12",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC ITP1000",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V23.01.10",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS IPC427E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V21.01.17",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-11T12:22:18.229Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-306654.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-22T19:06:40.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.insyde.com/security-pledge"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.insyde.com/security-pledge/SA-2022012"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://security.netapp.com/advisory/ntap-20220216-0007/"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-42554",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.insyde.com/security-pledge",
"refsource": "MISC",
"url": "https://www.insyde.com/security-pledge"
},
{
"name": "https://www.insyde.com/security-pledge/SA-2022012",
"refsource": "MISC",
"url": "https://www.insyde.com/security-pledge/SA-2022012"
},
{
"name": "https://security.netapp.com/advisory/ntap-20220216-0007/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20220216-0007/"
},
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf",
"refsource": "CONFIRM",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-42554",
"datePublished": "2022-02-03T01:40:56.000Z",
"dateReserved": "2021-10-18T00:00:00.000Z",
"dateUpdated": "2026-08-11T12:22:18.229Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-42554",
"date": "2026-09-19",
"epss": "0.00327",
"percentile": "0.2603"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F0BA9E3E-930F-4EE7-B652-8746B2E3D7EE",
"versionEndExcluding": "5.08.42",
"versionStartIncluding": "5.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A4803E0A-D93A-4863-B9F6-378C3D73F743",
"versionEndExcluding": "5.16.42",
"versionStartIncluding": "5.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "65D09B40-7B64-4890-AEA5-AE1EB5201CA1",
"versionEndExcluding": "5.26.42",
"versionStartIncluding": "5.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E38FAADD-CEC5-421F-BBD7-1152B95B2A10",
"versionEndExcluding": "5.35.42",
"versionStartIncluding": "5.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5536AD0D-EE19-41C7-BC57-69EAF77D6E8C",
"versionEndExcluding": "5.42.51",
"versionStartIncluding": "5.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C140942E-1DC5-4491-8BB6-7FF6960A216D",
"versionEndExcluding": "5.50.51",
"versionStartIncluding": "5.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "324ADC7E-AECD-4B7D-8571-5399542C2BF6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_field_pg_m5:-:*:*:*:*:*:*:*",
"matchCriteriaId": "506DEE00-30D2-4E29-9645-757EB8778C0F",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "480C5657-5C05-40F5-B76A-E67119727ED8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_field_pg_m6:-:*:*:*:*:*:*:*",
"matchCriteriaId": "8F3C3E60-7C36-4F5D-B454-97C9D0FD9459",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc127e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2AEB5AD1-3973-4150-BEA2-C9DE0B98222F",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc127e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "F63C0B17-60E2-4240-92FD-4B7C7D8F2C8B",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc227g_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C3F52F29-0ACF-4ECC-927A-0CB27399E5D9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc227g:-:*:*:*:*:*:*:*",
"matchCriteriaId": "0D1E85AC-1305-4C5E-AD8B-39B2654F6057",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc277g_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F203C449-2B5C-47A1-BF3D-8DCFD29F0B18",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc277g:-:*:*:*:*:*:*:*",
"matchCriteriaId": "320F5752-86B3-4C08-89D0-02272753A6D0",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc327g_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A37FB5EC-BB64-472C-81FC-8EEF238E3C12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc327g:-:*:*:*:*:*:*:*",
"matchCriteriaId": "EC7303D1-CC95-42C7-B843-C3B3B3336669",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc377g_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "45013BCA-3897-4D58-81FA-D8CB9D19268C",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc377g:-:*:*:*:*:*:*:*",
"matchCriteriaId": "FDD6F034-BC50-4223-AE5D-319F04C866A8",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc427e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F6422BF3-01B7-443B-BD2B-80E45D7C3F5F",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc427e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "A40D0CDB-7BE6-491F-B730-3B4E10CA159A",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc477e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "696F47E6-C1CA-4A58-A91F-4B3EA92954AF",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc477e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "FDF9D4C3-1892-48FA-95B4-835B636A4005",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc627e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F712060C-ECDB-4BC7-B9B9-468B41DE615B",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc627e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "9D9AF082-8345-4BE1-B1FC-6E0316BB833B",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc647e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D511C170-65E5-416D-B7CE-557A503F25AE",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc647e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E430C4C5-D887-47C6-B50F-66EEE9519151",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc677e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "577C19F5-82ED-46DF-91CC-A074DE99EBDD",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc677e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "5F9FA42D-B2F0-456F-89B7-6A5789787FBA",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc847e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CEF4592C-5DB3-45F4-B354-59701BBA0C08",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc847e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "1157418C-14C4-43C4-B63E-7E98D868A94F",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_itp1000_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "87F0538B-ED6E-40C7-9C2A-4C5DC3D2935E",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_itp1000:-:*:*:*:*:*:*:*",
"matchCriteriaId": "187C6D51-5B86-484D-AE0F-26D1C9465580",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:ruggedcom_ape1808_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "ABE0A54C-AEB3-4B1D-AD5D-F9239709B052",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:ruggedcom_ape1808:-:*:*:*:*:*:*:*",
"matchCriteriaId": "B89A6863-B602-4404-8D26-337FECABFFF0",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM."
},
{
"lang": "es",
"value": "Se ha descubierto un problema en InsydeH2O con el Kernel versi\u00f3n 5.0 antes de 05.08.42, el Kernel 5.1 antes de 05.16.42, el Kernel versi\u00f3n 5.2 antes de 05.26.42, el Kernel versi\u00f3n 5.3 antes de 05.35.42, el Kernel versi\u00f3n 5.4 antes de 05.42.51 y el Kernel versi\u00f3n 5.5 antes de 05.50.51. Una vulnerabilidad de corrupci\u00f3n de memoria SMM en FvbServicesRuntimeDxe permite a un posible atacante escribir datos fijos o predecibles en la SMRAM. La explotaci\u00f3n de este problema podr\u00eda llevar a escalar privilegios a SMM."
}
],
"id": "CVE-2021-42554",
"lastModified": "2024-11-21T06:27:47.840",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.2,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.5,
"impactScore": 6.0,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-02-03T02:15:07.380",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20220216-0007/"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.insyde.com/security-pledge"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.insyde.com/security-pledge/SA-2022012"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20220216-0007/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://www.insyde.com/security-pledge"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://www.insyde.com/security-pledge/SA-2022012"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "cve@mitre.org"
},
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "RUGGEDCOM APE1808 - BIOS",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V1.0.202N",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC Field PG M5",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V22.01.10",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC Field PG M6",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V26.01.13",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC127E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V27.01.09",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC227G",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V28.01.04",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC277G",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V28.01.04",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC\u00a0IPC277G PRO",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V28.01.04",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC327G",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V28.01.04",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC377G",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V28.01.04",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC427E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V21.01.17",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC477E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V21.01.17",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC477E PRO",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V21.01.17",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC627E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V25.02.12",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC647E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V25.02.12",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC677E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V25.02.12",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC IPC847E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V25.02.12",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC ITP1000",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V23.01.10",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS IPC427E",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V21.01.17",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F0BA9E3E-930F-4EE7-B652-8746B2E3D7EE",
"versionEndExcluding": "5.08.42",
"versionStartIncluding": "5.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A4803E0A-D93A-4863-B9F6-378C3D73F743",
"versionEndExcluding": "5.16.42",
"versionStartIncluding": "5.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "65D09B40-7B64-4890-AEA5-AE1EB5201CA1",
"versionEndExcluding": "5.26.42",
"versionStartIncluding": "5.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E38FAADD-CEC5-421F-BBD7-1152B95B2A10",
"versionEndExcluding": "5.35.42",
"versionStartIncluding": "5.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5536AD0D-EE19-41C7-BC57-69EAF77D6E8C",
"versionEndExcluding": "5.42.51",
"versionStartIncluding": "5.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C140942E-1DC5-4491-8BB6-7FF6960A216D",
"versionEndExcluding": "5.50.51",
"versionStartIncluding": "5.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "324ADC7E-AECD-4B7D-8571-5399542C2BF6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_field_pg_m5:-:*:*:*:*:*:*:*",
"matchCriteriaId": "506DEE00-30D2-4E29-9645-757EB8778C0F",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "480C5657-5C05-40F5-B76A-E67119727ED8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_field_pg_m6:-:*:*:*:*:*:*:*",
"matchCriteriaId": "8F3C3E60-7C36-4F5D-B454-97C9D0FD9459",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc127e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2AEB5AD1-3973-4150-BEA2-C9DE0B98222F",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc127e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "F63C0B17-60E2-4240-92FD-4B7C7D8F2C8B",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc227g_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C3F52F29-0ACF-4ECC-927A-0CB27399E5D9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc227g:-:*:*:*:*:*:*:*",
"matchCriteriaId": "0D1E85AC-1305-4C5E-AD8B-39B2654F6057",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc277g_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F203C449-2B5C-47A1-BF3D-8DCFD29F0B18",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc277g:-:*:*:*:*:*:*:*",
"matchCriteriaId": "320F5752-86B3-4C08-89D0-02272753A6D0",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc327g_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A37FB5EC-BB64-472C-81FC-8EEF238E3C12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc327g:-:*:*:*:*:*:*:*",
"matchCriteriaId": "EC7303D1-CC95-42C7-B843-C3B3B3336669",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc377g_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "45013BCA-3897-4D58-81FA-D8CB9D19268C",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc377g:-:*:*:*:*:*:*:*",
"matchCriteriaId": "FDD6F034-BC50-4223-AE5D-319F04C866A8",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc427e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F6422BF3-01B7-443B-BD2B-80E45D7C3F5F",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc427e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "A40D0CDB-7BE6-491F-B730-3B4E10CA159A",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc477e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "696F47E6-C1CA-4A58-A91F-4B3EA92954AF",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc477e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "FDF9D4C3-1892-48FA-95B4-835B636A4005",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc627e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F712060C-ECDB-4BC7-B9B9-468B41DE615B",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc627e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "9D9AF082-8345-4BE1-B1FC-6E0316BB833B",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc647e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D511C170-65E5-416D-B7CE-557A503F25AE",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc647e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E430C4C5-D887-47C6-B50F-66EEE9519151",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc677e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "577C19F5-82ED-46DF-91CC-A074DE99EBDD",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc677e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "5F9FA42D-B2F0-456F-89B7-6A5789787FBA",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_ipc847e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CEF4592C-5DB3-45F4-B354-59701BBA0C08",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_ipc847e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "1157418C-14C4-43C4-B63E-7E98D868A94F",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:simatic_itp1000_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "87F0538B-ED6E-40C7-9C2A-4C5DC3D2935E",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:simatic_itp1000:-:*:*:*:*:*:*:*",
"matchCriteriaId": "187C6D51-5B86-484D-AE0F-26D1C9465580",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:siemens:ruggedcom_ape1808_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "ABE0A54C-AEB3-4B1D-AD5D-F9239709B052",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:siemens:ruggedcom_ape1808:-:*:*:*:*:*:*:*",
"matchCriteriaId": "B89A6863-B602-4404-8D26-337FECABFFF0",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM."
},
{
"lang": "es",
"value": "Se ha descubierto un problema en InsydeH2O con el Kernel versi\u00f3n 5.0 antes de 05.08.42, el Kernel 5.1 antes de 05.16.42, el Kernel versi\u00f3n 5.2 antes de 05.26.42, el Kernel versi\u00f3n 5.3 antes de 05.35.42, el Kernel versi\u00f3n 5.4 antes de 05.42.51 y el Kernel versi\u00f3n 5.5 antes de 05.50.51. Una vulnerabilidad de corrupci\u00f3n de memoria SMM en FvbServicesRuntimeDxe permite a un posible atacante escribir datos fijos o predecibles en la SMRAM. La explotaci\u00f3n de este problema podr\u00eda llevar a escalar privilegios a SMM."
}
],
"id": "CVE-2021-42554",
"lastModified": "2026-08-11T13:17:21.767",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.2,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.5,
"impactScore": 6.0,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-02-03T02:15:07.380",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20220216-0007/"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.insyde.com/security-pledge"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.insyde.com/security-pledge/SA-2022012"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20220216-0007/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://www.insyde.com/security-pledge"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://www.insyde.com/security-pledge/SA-2022012"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://www.kb.cert.org/vuls/id/796611"
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-306654.html"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-29T05:06:29+00:00",
"cve": "CVE-2021-42554",
"id": "CVE-2021-42554",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2021-42554",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-42554.json",
"version": "3"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…