FKIE_CVE-2021-26409

Vulnerability from fkie_nvd - Published: 2023-01-11 08:15 - Updated: 2025-04-09 15:15
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure Nested Paging) memory integrity.
References
psirt@amd.comhttps://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032Vendor Advisory
Impacted products
Vendor Product Version
amd milanpi_firmware *
amd milanpi -
To clipboard 

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    {
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              "versionEndExcluding": "1.0.0.3",
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  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure Nested Paging) memory integrity.  \n\n"
    },
    {
      "lang": "es",
      "value": " La comprobaci\u00f3n de los l\u00edmites insuficiente en SEV-ES puede permitir que un atacante corrompa la memoria de la tabla de mapa inverso (RMP), lo que podr\u00eda provocar una p\u00e9rdida de integridad de la memoria SNP (paginaci\u00f3n anidada segura)."
    }
  ],
  "id": "CVE-2021-26409",
  "lastModified": "2025-04-09T15:15:44.103",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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        "type": "Secondary"
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  "published": "2023-01-11T08:15:11.743",
  "references": [
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      "source": "psirt@amd.com",
      "tags": [
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      "url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032"
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  "vulnStatus": "Modified",
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}


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