{"id":"CVE-2026-83789","title":"Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network.","summary":"Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-122"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T21:18:51.390","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83789","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83789","label":"secure@microsoft.com"}],"tags":["nvd"],"ingestedAt":"2026-10-13T19:43:29.113Z","slug":"CVE-2026-83789","body":"## Overview\n\nHeap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}