{"id":"CVE-2025-59280","aliases":["EUVD-2025-34368","GHSA-57v3-6r2p-wph5"],"status":"published","title":"Windows SMB Client Tampering Vulnerability","description":"Improper authentication in Windows SMB Client allows an unauthorized attacker to perform tampering over a network.","severity":{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00454,"percentile":0.39675,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2025-10-14T17:00:46Z","modified":"2026-06-17T09:45:51Z","products":[{"vendor":"microsoft","product":"windows 10 version 1507"},{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 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installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2022, 23h2 edition (server core installation)"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1507"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_server_2008"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2022_23h2"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59280","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59280"},{"url":"https://github.com/advisories/GHSA-57v3-6r2p-wph5"}],"sources":{"cve":[{"id":"CVE-2025-59280","title":"Windows SMB Client Tampering Vulnerability","description":"Improper authentication in Windows SMB Client allows an unauthorized attacker to perform tampering over a network.","status":"published","published":"2025-10-14T17:00:46.316Z","modified":"2026-02-22T17:24:55.104Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C","level":"low","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:32:47.812946Z"}],"euvd":[{"id":"EUVD-2025-34368","description":"Improper authentication in Windows SMB Client allows an unauthorized attacker to perform tampering over a 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network.","status":"published","published":"2025-10-14T17:16:10.433Z","modified":"2026-06-17T09:45:51.64Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:11:38.17237Z"}]}}