FKIE_CVE-2021-43522

Vulnerability from fkie_nvd - Published: 2022-02-03 00:15 - Updated: 2026-08-11 13:17
Severity
7.5 (High) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Summary
An issue was discovered in Insyde InsydeH2O with kernel 5.1 through 2021-11-08, 5.2 through 2021-11-08, and 5.3 through 2021-11-08. A StorageSecurityCommandDxe SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
References
cve@mitre.orghttps://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfThird Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20220216-0003/Third Party Advisory
cve@mitre.orghttps://www.insyde.com/security-pledgeVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220216-0003/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.insyde.com/security-pledgeVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/796611
0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-306654.html
Impacted products
Vendor Product Version
insyde insydeh2o *
insyde insydeh2o *
insyde insydeh2o *
To clipboard 

{
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              "matchCriteriaId": "782E4B3F-E5F2-418F-A499-7767030FABAD",
              "versionEndExcluding": "5.14.34",
              "versionStartIncluding": "5.1",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Insyde InsydeH2O with kernel 5.1 through 2021-11-08, 5.2 through 2021-11-08, and 5.3 through 2021-11-08. A StorageSecurityCommandDxe SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en InsydeH2O con el kernel versi\u00f3n 5.1 hasta 08-11-2021, versi\u00f3n 5.2 hasta 08-11-2021 y versi\u00f3n 5.3 hasta 08-11-2021. Una vulnerabilidad de corrupci\u00f3n de memoria de StorageSecurityCommandDxe SMM permite a un atacante escribir datos fijos o predecibles en la SMRAM. Una explotaci\u00f3n de este problema podr\u00eda conllevar a una escalada de privilegios en SMM"
    }
  ],
  "id": "CVE-2021-43522",
  "lastModified": "2026-08-11T13:17:22.203",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.9,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
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        "type": "Primary",
        "userInteractionRequired": false
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          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
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        "impactScore": 6.0,
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  "published": "2022-02-03T00:15:07.677",
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}



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