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CVE-2020-5378

Status: ModifiedMedium (6.8)—

Dell G7 17 7790 BIOS versions prior to 1.13.2 contain a UEFI BIOS Boot Services overwrite vulnerability. A local attacker with access to system memory may exploit this vulnerability by overwriting the EFI_BOOT_SERVICES structure to execute arbitrary code in System Management Mode (SMM).

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).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Source: official MITRE CTID mapping (CVE → ATT&CK).

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account ManagementBoot IntegrityUpdate Software

Affected technologies (1)

Dell — G7 17 7790 Bios

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-5378",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
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        "cvssData": {
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          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
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  "published": "2020-09-02T21:15:12.860",
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  "vulnStatus": "Modified",
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      "description": [
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      "lang": "en",
      "value": "Dell G7 17 7790 BIOS versions prior to 1.13.2 contain a UEFI BIOS Boot Services overwrite vulnerability. A local attacker with access to system memory may exploit this vulnerability by overwriting the EFI_BOOT_SERVICES structure to execute arbitrary code in System Management Mode (SMM)."
    },
    {
      "lang": "es",
      "value": "El BIOS de Dell G7 17 7790 versiones anteriores a 1.13.2 contienen una vulnerabilidad de sobrescritura de UEFI BIOS Boot Services. Un atacante local con acceso a la memoria del sistema puede aprovechar esta vulnerabilidad al sobrescribir la estructura de EFI_BOOT_SERVICES para ejecutar código arbitrario en System Management Mode (SMM)"
    }
  ],
  "lastModified": "2026-06-17T03:21:22.950",
  "configurations": [
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