{"id":"CVE-2026-73019","title":"Improper resolution of path equivalence in Windows URL Moniker allows an unauthorized attacker to bypass a security feature over a network.","summary":"Improper resolution of path equivalence in Windows URL Moniker allows an unauthorized attacker to bypass a security feature over a network.","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","cwe":["CWE-41"],"vendor":"microsoft","product":"windows_10_1607","affected":["windows_10_1607 < 10.0.14393.9512","windows_10_1809 < 10.0.17763.9245","windows_10_21h2 < 10.0.19044.7725","windows_10_22h2 < 10.0.19045.7725","windows_11_23h2 < 10.0.22631.7582","windows_11_24h2 < 10.0.26100.9445","windows_11_25h2 < 10.0.26200.9445","windows_11_26h1 < 10.0.28000.2954","windows_server_2012","windows_server_2012 = r2","windows_server_2016 < 10.0.14393.9512","windows_server_2019 < 10.0.17763.9245","windows_server_2022 < 10.0.20348.5622","windows_server_2025 < 10.0.26100.33438"],"patched":["windows_10_1607 10.0.14393.9512","windows_10_1809 10.0.17763.9245","windows_10_21h2 10.0.19044.7725","windows_10_22h2 10.0.19045.7725","windows_11_23h2 10.0.22631.7582","windows_11_24h2 10.0.26100.9445","windows_11_25h2 10.0.26200.9445","windows_11_26h1 10.0.28000.2954","windows_server_2016 10.0.14393.9512","windows_server_2019 10.0.17763.9245","windows_server_2022 10.0.20348.5622","windows_server_2025 10.0.26100.33438"],"published":"2026-09-08","updated":"2026-09-16","sourceUpdated":"2026-09-16T15:09:34.020","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73019","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73019","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00725,"epssPercentile":0.52184,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-10T20:47:14.850140Z"},"ingestedAt":"2026-09-08T19:08:49.626Z","slug":"CVE-2026-73019","body":"## Overview\n\nImproper resolution of path equivalence in Windows URL Moniker allows an unauthorized attacker to bypass a security feature over a network.\n\n## Affected\n\n- `windows_10_1607 < 10.0.14393.9512`\n- `windows_10_1809 < 10.0.17763.9245`\n- `windows_10_21h2 < 10.0.19044.7725`\n- `windows_10_22h2 < 10.0.19045.7725`\n- `windows_11_23h2 < 10.0.22631.7582`\n- `windows_11_24h2 < 10.0.26100.9445`\n- `windows_11_25h2 < 10.0.26200.9445`\n- `windows_11_26h1 < 10.0.28000.2954`\n- `windows_server_2012`\n- `windows_server_2012 = r2`\n- `windows_server_2016 < 10.0.14393.9512`\n- `windows_server_2019 < 10.0.17763.9245`\n- `windows_server_2022 < 10.0.20348.5622`\n- `windows_server_2025 < 10.0.26100.33438`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_10_1607 10.0.14393.9512`\n- `windows_10_1809 10.0.17763.9245`\n- `windows_10_21h2 10.0.19044.7725`\n- `windows_10_22h2 10.0.19045.7725`\n- `windows_11_23h2 10.0.22631.7582`\n- `windows_11_24h2 10.0.26100.9445`\n- `windows_11_25h2 10.0.26200.9445`\n- `windows_11_26h1 10.0.28000.2954`\n- `windows_server_2016 10.0.14393.9512`\n- `windows_server_2019 10.0.17763.9245`\n- `windows_server_2022 10.0.20348.5622`\n- `windows_server_2025 10.0.26100.33438`","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}