{"id":"CVE-2026-83697","title":"Time-of-check time-of-use (toctou) race condition in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.","summary":"Time-of-check time-of-use (toctou) race condition in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.","severity":"medium","cvss":4.7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-367"],"vendor":"Microsoft","product":"Windows 10 Version 1809","affected":["windows_10_version_1809 >= 10.0.17763.0 < 10.0.17763.9376","windows_10_version_21h2 >= 10.0.19044.0 < 10.0.19044.7807","windows_10_version_22h2 >= 10.0.19045.0 < 10.0.19044.7807","windows_11_version_23h2 >= 10.0.22631.0 < 10.0.22631.7652","windows_11_version_23h2 >= 10.0.22631.0 < 10.0.22631.7652","windows_11_version_24h2 >= 10.0.26100.0 < 10.0.26100.9711","windows_11_version_25h2 >= 10.0.26200.0 < 10.0.26200.9711","windows_11_version_26h1 >= 10.0.28000.0 < 10.0.28000.3231","windows_11_version_26h2 >= 10.0.26300.0 < 10.0.26300.9711","windows_server_2019 >= 10.0.17763.0 < 10.0.17763.9376","windows_server_2019_server_core_installation >= 10.0.17763.0 < 10.0.17763.9376","windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5761","windows_server_2025 >= 10.0.26100.0 < 10.0.26100.33650","windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.33650"],"published":"2026-10-13","updated":"2026-10-16","sourceUpdated":"2026-10-16T16:21:18.447","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83697","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83697","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00229,"epssPercentile":0.13639,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-13T20:34:59.746156Z"},"ingestedAt":"2026-10-13T19:43:29.087Z","slug":"CVE-2026-83697","body":"## Overview\n\nTime-of-check time-of-use (toctou) race condition in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":25.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}