{"id":"CVE-2021-36148","aliases":["EUVD-2021-22780","GHSA-fwp2-vqg8-gvfh"],"status":"published","title":"An issue was discovered in ACRN before 2.5. dmar_free_irte in hypervisor/arch/x86/vtd.c allows an...","description":"An issue was discovered in ACRN before 2.5. dmar_free_irte in hypervisor/arch/x86/vtd.c allows an irte_alloc_bitmap buffer overflow.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00664,"percentile":0.52236,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2021-07-02T21:24:05Z","modified":"2026-06-17T03:58:24Z","products":[{"vendor":"linux","product":"acrn"}],"references":[{"url":"https://github.com/projectacrn/acrn-hypervisor/commit/25c0e3817eb332660dd63d1d4522e63dcc94e79a","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-36148"},{"url":"https://github.com/advisories/GHSA-fwp2-vqg8-gvfh"}],"sources":{"cve":[{"id":"CVE-2021-36148","description":"An issue was discovered in ACRN before 2.5. dmar_free_irte in hypervisor/arch/x86/vtd.c allows an irte_alloc_bitmap buffer overflow.","status":"published","published":"2021-07-02T21:24:05Z","modified":"2024-08-04T00:47:43.811Z","updated_at":"2026-11-02T14:33:06.32268Z"}],"euvd":[{"id":"EUVD-2021-22780","description":"An issue was discovered in ACRN before 2.5. dmar_free_irte in hypervisor/arch/x86/vtd.c allows an irte_alloc_bitmap buffer overflow.","status":"published","published":"2021-07-02T21:24:05Z","modified":"2024-08-04T00:47:43Z","updated_at":"2026-11-03T03:24:29.877227Z"}],"ghsa":[{"id":"GHSA-fwp2-vqg8-gvfh","title":"An issue was discovered in ACRN before 2.5. dmar_free_irte in hypervisor/arch/x86/vtd.c allows an...","description":"An issue was discovered in ACRN before 2.5. dmar_free_irte in hypervisor/arch/x86/vtd.c allows an irte_alloc_bitmap buffer overflow.","status":"published","published":"2022-05-24T19:06:54Z","modified":"2023-01-30T05:00:36Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:46:14.46933Z"}],"nvd":[{"id":"CVE-2021-36148","description":"An issue was discovered in ACRN before 2.5. dmar_free_irte in hypervisor/arch/x86/vtd.c allows an irte_alloc_bitmap buffer overflow.","status":"published","published":"2021-07-02T22:15:08.987Z","modified":"2026-06-17T03:58:24.943Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:06:55.259633Z"}]}}