{"id":"CVE-2025-29956","aliases":["EUVD-2025-14420","GHSA-mjqj-43pc-37r9"],"status":"published","title":"Windows SMB Information Disclosure Vulnerability","description":"Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0112,"percentile":0.66602,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-126"],"published":"2025-05-13T16:59:05Z","modified":"2026-06-17T09:05:57Z","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-2025-29956","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-29956"},{"url":"https://github.com/advisories/GHSA-mjqj-43pc-37r9"}],"sources":{"cve":[{"id":"CVE-2025-29956","title":"Windows SMB Information Disclosure Vulnerability","description":"Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.","status":"published","published":"2025-05-13T16:59:05.599Z","modified":"2026-02-13T19:21:26.736Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T14:32:45.797843Z"}],"euvd":[{"id":"EUVD-2025-14420","description":"Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.","status":"published","published":"2025-05-13T16:59:05Z","modified":"2026-02-13T19:21:26Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T19:48:39.007067Z"}],"ghsa":[{"id":"GHSA-mjqj-43pc-37r9","title":"Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a...","description":"Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.","status":"published","published":"2025-05-13T18:30:54Z","modified":"2025-05-19T18:30:39Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L","level":"medium"}],"cwes":["CWE-125","CWE-126"],"updated_at":"2026-11-02T15:02:21.433827Z"}],"nvd":[{"id":"CVE-2025-29956","description":"Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.","status":"published","published":"2025-05-13T17:15:55.623Z","modified":"2026-06-17T09:05:57.513Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-126","CWE-125"],"updated_at":"2026-11-02T14:11:07.176032Z"}]}}