{"id":"CVE-2026-49784","title":"Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.","summary":"Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-362","CWE-416"],"published":"2026-07-14","updated":"2026-07-16","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-49784","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49784","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00202,"epssPercentile":0.10449,"ingestedAt":"2026-07-17T13:12:09.187Z","vendor":"Microsoft","product":"Windows 10 Version 1607","affected":["windows_10_version_1607 >= 10.0.14393.0 < 10.0.14393.9339","windows_10_version_1809 >= 10.0.17763.0 < 10.0.17763.9020","windows_10_version_21h2 >= 10.0.19044.0 < 10.0.19044.7548","windows_10_version_22h2 >= 10.0.19045.0 < 10.0.19045.7548","windows_11_version_24h2 >= 10.0.26100.0 < 10.0.26100.8875","windows_11_version_25h2 >= 10.0.26200.0 < 10.0.26200.8875","windows_11_version_26h1 >= 10.0.28000.0 < 10.0.28000.2525","windows_server_2016 >= 10.0.14393.0 < 10.0.14393.9339","windows_server_2016_server_core_installation >= 10.0.14393.0 < 10.0.14393.9339","windows_server_2019 >= 10.0.17763.0 < 10.0.17763.9020","windows_server_2019_server_core_installation >= 10.0.17763.0 < 10.0.17763.9020","windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5386","windows_server_2025 >= 10.0.26100.0 < 10.0.26100.33158","windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.33158"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-07-22T00:00:00+00:00"},"slug":"CVE-2026-49784","body":"## Overview\n\nConcurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}