CVE-2026-0438

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

• https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3030.html psirt@amd.com
• https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4017.html psirt@amd.com

The full cvelistV5 record. Download as CVE-2026-0438.json.

{
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    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-0438",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-15T13:17:40.357741Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-15T13:29:51.481Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "defaultStatus": "affected",
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          "vendor": "AMD",
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              "status": "unaffected",
              "version": "PhoenixPI-FP8-FP7_1.2.0.0f"
            }
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        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 AI Max 300 Series Processors",
          "vendor": "AMD",
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            {
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              "version": "StrixHaloPI-FP11_1.0.0.2a"
            }
          ]
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          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 Z1 Series Processors",
          "vendor": "AMD",
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            {
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            }
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              "version": "ComboAM5PI_1.3.0.0"
            }
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            {
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            }
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          "vendor": "AMD",
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            {
              "status": "unaffected",
              "version": "EmbeddedAM5PI 1.0.0.5"
            }
          ]
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          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbeddedPhoenixPI-FP7r2_1.0.0.4"
            }
          ]
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          "versions": [
            {
              "status": "unaffected",
              "version": "EmbeddedAM5PI 1.0.0.5"
            }
          ]
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          "defaultStatus": "affected",
          "product": "AMD EPYC\u2122 4004 Series Processors",
          "vendor": "AMD",
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            {
              "status": "unaffected",
              "version": "ComboAM5PI 1.0.0.d / ComboAM5PI 1.1.0.3f / ComboAM5PI_1.2.0.3i"
            }
          ]
        },
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          "defaultStatus": "affected",
          "product": "AMD EPYC\u2122 4005 Series Processors",
          "vendor": "AMD",
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            {
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      "datePublic": "2026-05-15T01:40:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A System Management Mode (SMM) handler could perform a callout to code located in non-SMM/untrusted memory. A highly privileged attacker could, with active user interaction and under high complexity and present preconditions, trigger execution of attacker-controlled code in SMM, potentially compromising the system\u2019s confidentiality, integrity, and availability.<br>"
            }
          ],
          "value": "A System Management Mode (SMM) handler could perform a callout to code located in non-SMM/untrusted memory. A highly privileged attacker could, with active user interaction and under high complexity and present preconditions, trigger execution of attacker-controlled code in SMM, potentially compromising the system\u2019s confidentiality, integrity, and availability."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "PHYSICAL",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:P/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1072",
              "description": "CWE-1072  Call to Function Pointer from Untrusted Control Sphere in SMM",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-15T01:42:03.356Z",
        "orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
        "shortName": "AMD"
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      "references": [
        {
          "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3030.html"
        },
        {
          "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4017.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "AMD PSIRT Automation 1.0"
      }
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  "cveMetadata": {
    "assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
    "assignerShortName": "AMD",
    "cveId": "CVE-2026-0438",
    "datePublished": "2026-05-15T01:41:25.568Z",
    "dateReserved": "2025-12-06T13:53:51.228Z",
    "dateUpdated": "2026-05-15T13:29:51.481Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}