{"id":"CVE-2026-83728","title":"Improper validation of syntactic correctness of input in Windows Hyper-V allows an authorized attacker to perform spoofing locally.","summary":"Improper validation of syntactic correctness of input in Windows Hyper-V allows an authorized attacker to perform spoofing locally.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-1286"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T23:18:23.617","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83728","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83728","label":"secure@microsoft.com"}],"tags":["nvd"],"ingestedAt":"2026-10-13T19:43:29.096Z","slug":"CVE-2026-83728","body":"## Overview\n\nImproper validation of syntactic correctness of input in Windows Hyper-V allows an authorized attacker to perform spoofing locally.\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":[]}