{"id":"CVE-2025-21343","aliases":["EUVD-2025-2408","GHSA-rrm6-257m-2hgw"],"status":"published","title":"Windows Web Threat Defense User Service Information Disclosure Vulnerability","description":"Windows Web Threat Defense User Service Information Disclosure Vulnerability","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01367,"percentile":0.72078,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2025-01-14T18:04:42Z","modified":"2026-06-17T08:43:09Z","products":[{"vendor":"microsoft","product":"windows 11 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 22h3"},{"vendor":"microsoft","product":"windows 11 version 23h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows_11_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21343","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21343"},{"url":"https://github.com/advisories/GHSA-rrm6-257m-2hgw"}],"sources":{"cve":[{"id":"CVE-2025-21343","title":"Windows Web Threat Defense User Service Information Disclosure Vulnerability","description":"Windows Web Threat Defense User Service Information Disclosure Vulnerability","status":"published","published":"2025-01-14T18:04:42.381Z","modified":"2026-06-09T18:29:59.87Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:32:32.30152Z"}],"euvd":[{"id":"EUVD-2025-2408","description":"Windows Web Threat Defense User Service Information Disclosure Vulnerability","status":"published","published":"2025-01-14T18:04:42Z","modified":"2026-06-09T18:29:59Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:20:46.299732Z"}],"ghsa":[{"id":"GHSA-rrm6-257m-2hgw","title":"Windows Web Threat Defense User Service Information Disclosure Vulnerability","description":"Windows Web Threat Defense User Service Information Disclosure Vulnerability","status":"published","published":"2025-01-14T18:32:05Z","modified":"2025-01-14T18:32:16Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:59:31.239029Z"}],"nvd":[{"id":"CVE-2025-21343","description":"Windows Web Threat Defense User Service Information Disclosure Vulnerability","status":"published","published":"2025-01-14T18:16:00.053Z","modified":"2026-06-17T08:43:09.26Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:10:48.713733Z"}]}}