{
  "id": "CVE-2023-27373",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2023-08-07T15:15:10.893",
  "lastModified": "2023-08-15T14:29:28.147",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. Due to insufficient input validation, an attacker can tamper with a runtime-accessible EFI variable to cause a dynamic BAR setting to overlap SMRAM."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:insyde:insydeh2o:5.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "C50E9CE0-9960-4939-A6C1-E6E69F464456"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:insyde:insydeh2o:5.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "6F486B49-3E4C-43BD-9165-8D159EBE74F9"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:insyde:insydeh2o:5.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "2BA6B7DE-2275-41D9-BFD0-066AC3912055"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:insyde:insydeh2o:5.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "24E601E3-FCF5-4907-BCB1-E5D331896E40"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:insyde:insydeh2o:5.4:*:*:*:*:*:*:*",
              "matchCriteriaId": "88E0151F-0A27-4F69-96B4-A40B00719107"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:insyde:insydeh2o:5.5:*:*:*:*:*:*:*",
              "matchCriteriaId": "E87C1381-CDD4-4A1C-AF59-32873BDF2730"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.insyde.com/security-pledge/SA-2023035",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}