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CVE-2018-20815

Status: ModifiedCritical (9.8)—

In QEMU 3.1.0, load_device_tree in device_tree.c calls the deprecated load_image function, which has a buffer overflow risk.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Qemu — Qemu

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-20815",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
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      "affectedData": [
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          "versions": [
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              "status": "affected",
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  "published": "2019-05-31T22:29:00.833",
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-119"
        }
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  "descriptions": [
    {
      "lang": "en",
      "value": "In QEMU 3.1.0, load_device_tree in device_tree.c calls the deprecated load_image function, which has a buffer overflow risk."
    },
    {
      "lang": "es",
      "value": "En QEMU versión 3.1.0, la función load_device_tree en el archivo device_tree.c llama a la función en desuso load_image, que tiene un riesgo de desbordamiento de búfer."
    }
  ],
  "lastModified": "2026-06-17T01:53:31.980",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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            }
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}