{"id":"CVE-2021-33758","title":"Windows Hyper-V Denial of Service Vulnerability","summary":"Windows Hyper-V Denial of Service Vulnerability","severity":"high","cvss":7.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","vendor":"microsoft","product":"windows_10","affected":["windows_10 = 1607","windows_server_2016"],"published":"2021-07-14","updated":"2026-08-10","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-33758","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33758","label":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33758","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.02845,"epssPercentile":0.86087,"ingestedAt":"2026-08-10T16:41:15.216Z","slug":"CVE-2021-33758","body":"## Overview\n\nWindows Hyper-V Denial of Service Vulnerability\n\n## Affected\n\n- `windows_10 = 1607`\n- `windows_server_2016`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.4,"likelihood":0.6,"exploitation":0,"ransomware":0},"changes":[]}