{"id":"CVE-2021-34513","title":"Windows Storage Spaces Controller Elevation of Privilege Vulnerability","summary":"Windows Storage Spaces Controller Elevation of Privilege Vulnerability","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-190"],"vendor":"microsoft","product":"windows_10","affected":["windows_10","windows_10 = 20h2","windows_10 = 21h1","windows_10 = 1909","windows_10 = 2004","windows_server_2016 = 20h2","windows_server_2016 = 2004"],"published":"2021-07-14","updated":"2026-08-10","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-34513","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34513","label":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34513","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-875/","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.01049,"epssPercentile":0.62715,"zeroDay":true,"ingestedAt":"2026-08-10T16:41:17.222Z","slug":"CVE-2021-34513","body":"## Overview\n\nWindows Storage Spaces Controller Elevation of Privilege Vulnerability\n\n## Affected\n\n- `windows_10`\n- `windows_10 = 20h2`\n- `windows_10 = 21h1`\n- `windows_10 = 1909`\n- `windows_10 = 2004`\n- `windows_server_2016 = 20h2`\n- `windows_server_2016 = 2004`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":68,"depthScoreParts":{"impact":42.9,"likelihood":0.2,"exploitation":25,"ransomware":0},"changes":[]}