{"id":"CVE-2021-38918","aliases":["EUVD-2021-25355","GHSA-m8m5-5pw5-3xr7"],"status":"published","title":"IBM PowerVM Hypervisor FW860, FW940, FW950, and FW1010, through a specific sequence of VM...","description":"IBM PowerVM Hypervisor FW860, FW940, FW950, and FW1010, through a specific sequence of VM management operations could lead to a violation of the isolation between peer VMs. IBM X-Force ID: 210019.","severity":{"version":"3.0","score":8.6,"vector":"CVSS:3.0/I:N/AC:L/AV:N/UI:N/C:H/A:N/S:C/PR:N/RC:C/RL:O/E:U","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0125,"percentile":0.69773,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-01-05T16:30:11Z","modified":"2026-06-17T04:02:49Z","products":[{"vendor":"ibm","product":"powervm hypervisor"},{"vendor":"ibm","product":"powervm_hypervisor"}],"references":[{"url":"https://www.ibm.com/support/pages/node/6525032","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/210019","tags":["vdb-entry","x_refsource_XF","x_transferred","VDB Entry","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38918"},{"url":"https://github.com/advisories/GHSA-m8m5-5pw5-3xr7"}],"sources":{"cve":[{"id":"CVE-2021-38918","description":"IBM PowerVM Hypervisor FW860, FW940, FW950, and FW1010, through a specific sequence of VM management operations could lead to a violation of the isolation between peer VMs. IBM X-Force ID: 210019.","status":"published","published":"2022-01-05T16:30:11.969Z","modified":"2024-09-16T20:47:29.123Z","cvss":[{"version":"3.0","score":8.6,"vector":"CVSS:3.0/I:N/AC:L/AV:N/UI:N/C:H/A:N/S:C/PR:N/RC:C/RL:O/E:U","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:07.349244Z"}],"euvd":[{"id":"EUVD-2021-25355","description":"IBM PowerVM Hypervisor FW860, FW940, FW950, and FW1010, through a specific sequence of VM management operations could lead to a violation of the isolation between peer VMs. IBM X-Force ID: 210019.","status":"published","published":"2022-01-05T16:30:11Z","modified":"2024-09-16T20:47:29Z","cvss":[{"version":"3.0","score":8.6,"vector":"CVSS:3.0/I:N/AC:L/AV:N/UI:N/C:H/A:N/S:C/PR:N/RC:C/RL:O/E:U","level":"high"}],"updated_at":"2026-11-03T00:55:10.854479Z"}],"ghsa":[{"id":"GHSA-m8m5-5pw5-3xr7","title":"IBM PowerVM Hypervisor FW860, FW940, FW950, and FW1010, through a specific sequence of VM...","description":"IBM PowerVM Hypervisor FW860, FW940, FW950, and FW1010, through a specific sequence of VM management operations could lead to a violation of the isolation between peer VMs. IBM X-Force ID: 210019.","status":"published","published":"2022-01-06T00:00:30Z","modified":"2023-02-03T05:04:07Z","updated_at":"2026-11-02T14:53:29.32278Z"}],"nvd":[{"id":"CVE-2021-38918","description":"IBM PowerVM Hypervisor FW860, FW940, FW950, and FW1010, through a specific sequence of VM management operations could lead to a violation of the isolation between peer VMs. IBM X-Force ID: 210019.","status":"published","published":"2022-01-05T17:15:09.19Z","modified":"2026-06-17T04:02:49.767Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"3.0","score":8.6,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:03.418194Z"}]}}