{"id":"CVE-2020-3981","aliases":["EUVD-2020-25246","GHSA-9v5h-wgx5-jxxj"],"status":"published","title":"VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before...","description":"VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fusion (11.x before 11.5.6) contain an out-of-bounds read vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this issue to leak memory from the vmx process.","severity":{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00802,"percentile":0.5698,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-367"],"published":"2020-10-20T16:08:56Z","modified":"2026-06-17T03:19:22Z","products":[{"vendor":"vmware","product":"cloud_foundation"},{"vendor":"vmware","product":"esxi"},{"vendor":"vmware","product":"fusion"},{"vendor":"vmware","product":"vmware esxi, workstation, fusion"},{"vendor":"vmware","product":"workstation"}],"references":[{"url":"https://www.vmware.com/security/advisories/VMSA-2020-0023.html","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-3981"},{"url":"https://github.com/advisories/GHSA-9v5h-wgx5-jxxj"}],"sources":{"cve":[{"id":"CVE-2020-3981","description":"VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fusion (11.x before 11.5.6) contain an out-of-bounds read vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this issue to leak memory from the vmx process.","status":"published","published":"2020-10-20T16:08:56Z","modified":"2024-08-04T07:52:20.441Z","updated_at":"2026-11-02T14:35:52.268457Z"}],"euvd":[{"id":"EUVD-2020-25246","description":"VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fusion (11.x before 11.5.6) contain an out-of-bounds read vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this issue to leak memory from the vmx process.","status":"published","published":"2020-10-20T16:08:56Z","modified":"2024-08-04T07:52:20Z","updated_at":"2026-11-03T03:08:07.872525Z"}],"ghsa":[{"id":"GHSA-9v5h-wgx5-jxxj","title":"VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before...","description":"VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fusion (11.x before 11.5.6) contain an out-of-bounds read vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this issue to leak memory from the vmx process.","status":"published","published":"2022-05-24T17:31:50Z","modified":"2023-01-29T05:04:29Z","cwes":["CWE-367"],"updated_at":"2026-11-02T14:45:34.167575Z"}],"nvd":[{"id":"CVE-2020-3981","description":"VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fusion (11.x before 11.5.6) contain an out-of-bounds read vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this issue to leak memory from the vmx process.","status":"published","published":"2020-10-20T17:15:12.67Z","modified":"2026-06-17T03:19:22.54Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-125","CWE-367"],"updated_at":"2026-11-02T14:06:20.704992Z"}]}}