{"id":"CVE-2026-65641","aliases":["EUVD-2026-66760","GHSA-mffw-5w3v-pm66"],"status":"published","title":"A vulnerability allowing an unauthenticated network attacker to coerce SMB authentication from...","description":"A vulnerability allowing an unauthenticated network attacker to coerce SMB authentication from the service account.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:L","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00543,"percentile":0.45891,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-288"],"published":"2026-08-26T21:21:40Z","modified":"2026-09-09T15:41:24Z","products":[{"vendor":"samsung open source","product":"one"},{"vendor":"veeam","product":"one"}],"references":[{"url":"https://www.veeam.com/kb4905"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65641"},{"url":"https://github.com/advisories/GHSA-mffw-5w3v-pm66"}],"sources":{"cve":[{"id":"CVE-2026-65641","description":"A vulnerability allowing an unauthenticated network attacker to coerce SMB authentication from the service account.","status":"published","published":"2026-08-26T21:21:40.955Z","modified":"2026-08-27T15:04:11.392Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:L","level":"critical","assessor":"cna"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T13:37:13.934727Z"}],"euvd":[{"id":"EUVD-2026-66760","description":"A vulnerability allowing an unauthenticated network attacker to coerce SMB authentication from the service account.","status":"published","published":"2026-08-26T21:21:40Z","modified":"2026-08-27T15:04:11Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:L","level":"critical"}],"updated_at":"2026-11-02T18:01:27.663452Z"}],"ghsa":[{"id":"GHSA-mffw-5w3v-pm66","title":"A vulnerability allowing an unauthenticated network attacker to coerce SMB authentication from...","description":"A vulnerability allowing an unauthenticated network attacker to coerce SMB authentication from the service account.","status":"published","published":"2026-08-27T00:30:28Z","modified":"2026-08-27T00:30:36Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T15:11:02.000078Z"}],"nvd":[{"id":"CVE-2026-65641","description":"A vulnerability allowing an unauthenticated network attacker to coerce SMB authentication from the service account.","status":"published","published":"2026-08-26T22:16:25.747Z","modified":"2026-09-09T15:41:24.427Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T14:12:41.66469Z"}]}}