{"id":"CVE-2025-54917","published":"2025-09-09T17:01:30Z","modified":"2026-02-20T16:01:04Z","title":"MapUrlToZone Security Feature Bypass Vulnerability","vendor":"Microsoft","product":"Windows 10 Version 1507","tier":"tail","description":{"text":"Protection mechanism failure in Windows MapUrlToZone allows an unauthorized attacker to bypass a security feature over a network.","provenance":"source","from":"CVE.org"},"cvss":{"score":4.3,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00947,"percentile":0.61042,"provenance":"source"},"cwes":[{"id":"CWE-693","name":"Protection Mechanism Failure"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54917","tags":["vendor-advisory","patch"]}],"priority":{"score":15.2,"factors":[{"name":"EPSS percentile","points":12.21},{"name":"CVSS severity","points":3.01}]},"vendorSlug":"microsoft","affectedVersions":[{"vendor":"Microsoft","product":"Windows 10 Version 1507","versions":[">= 10.0.10240.0, < 10.0.10240.21128"]},{"vendor":"Microsoft","product":"Windows 10 Version 1607","versions":[">= 10.0.14393.0, < 10.0.14393.8422"]},{"vendor":"Microsoft","product":"Windows 10 Version 1809","versions":[">= 10.0.17763.0, < 10.0.17763.7792"]},{"vendor":"Microsoft","product":"Windows 10 Version 21H2","versions":[">= 10.0.19044.0, < 10.0.19044.6332"]},{"vendor":"Microsoft","product":"Windows 10 Version 22H2","versions":[">= 10.0.19045.0, < 10.0.19045.6332"]},{"vendor":"Microsoft","product":"Windows 11 version 22H2","versions":[">= 10.0.22621.0, < 10.0.22621.5909"]},{"vendor":"Microsoft","product":"Windows 11 version 22H3","versions":[">= 10.0.22631.0, < 10.0.22631.5909"]},{"vendor":"Microsoft","product":"Windows 11 Version 23H2","versions":[">= 10.0.22631.0, < 10.0.22631.5909"]},{"vendor":"Microsoft","product":"Windows 11 Version 24H2","versions":[">= 10.0.26100.0, < 10.0.26100.6584"]},{"vendor":"Microsoft","product":"Windows Server 2008 R2 Service Pack 1","versions":[">= 6.1.7601.0, < 6.1.7601.27929"]}],"euvd":{"id":"EUVD-2025-27297","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-693"}}