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CVE-2020-2732

Status: ModifiedMedium (6.8)—

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest.

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)

Redhat — Enterprise Linux

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-2732",
  "cveTags": [],
  "metrics": {
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  "published": "2020-04-08T22:15:12.263",
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      "description": [
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          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest."
    },
    {
      "lang": "es",
      "value": "Se detectó un fallo en la manera en que el hipervisor de KVM manejó la emulación de instrucciones para un invitado L2 cuando la virtualización anidada está habilitada. En algunas circunstancias, un invitado L2 puede engañar al invitado L0 para que acceda a recursos L1 confidenciales que deberían estar inaccesibles para el invitado L2."
    }
  ],
  "lastModified": "2026-06-17T03:12:46.813",
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}