{"id":"CVE-2026-85818","title":"Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.","summary":"Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.","severity":"critical","cvss":9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-347"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T23:18:50.217","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85818","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85818","label":"secure@microsoft.com"}],"tags":["nvd"],"ingestedAt":"2026-10-13T19:43:29.173Z","slug":"CVE-2026-85818","body":"## Overview\n\nImproper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":49.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}