{"id":"CVE-2026-34350","aliases":["EUVD-2026-29606","GHSA-j4rf-m955-wgf3"],"status":"published","title":"Windows Storport Miniport Driver Denial of Service Vulnerability","description":"Null pointer dereference in Windows Storport Miniport Driver allows an unauthorized attacker to deny service over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00782,"percentile":0.56426,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2026-05-12T16:58:27Z","modified":"2026-10-26T00:10:00Z","products":[{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34350","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34350"},{"url":"https://github.com/advisories/GHSA-j4rf-m955-wgf3"}],"sources":{"cve":[{"id":"CVE-2026-34350","title":"Windows Storport Miniport Driver Denial of Service Vulnerability","description":"Null pointer dereference in Windows Storport Miniport Driver allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-05-12T16:58:27.105Z","modified":"2026-08-10T15:12:40.645Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:20:14.665567Z"}],"euvd":[{"id":"EUVD-2026-29606","description":"Null pointer dereference in Windows Storport Miniport Driver allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-05-12T16:58:27Z","modified":"2026-08-10T15:12:40Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T18:02:02.865075Z"}],"ghsa":[{"id":"GHSA-j4rf-m955-wgf3","title":"Null pointer dereference in Windows Storport Miniport Driver allows an unauthorized attacker to...","description":"Null pointer dereference in Windows Storport Miniport Driver allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-05-12T18:30:43Z","modified":"2026-05-12T18:30:49Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:08:05.647564Z"}],"nvd":[{"id":"CVE-2026-34350","description":"Null pointer dereference in Windows Storport Miniport Driver allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-05-12T18:17:09.54Z","modified":"2026-10-26T00:10:00.15Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:12:18.613259Z"}]}}