{"id":"CVE-2026-84854","title":"In the WibuKey driver for Windows below Version 6.72, insufficient validation of user input when calculating the size of a kernel buffer could cause small amounts of data to be written outside the intended kernel buffer","summary":"In the WibuKey driver for Windows below Version 6.72, insufficient validation of user input when calculating the size of a kernel buffer could cause small amounts of data to be written outside the intended kernel buffer. This can lead to…","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"wibu-systems-ag","product":"wibukey","affected":["wibukey < 6.72"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T12:16:50.587","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84854","references":[{"url":"https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-100065.pdf","label":"2fc02b1f-71e7-4514-a878-169626f68903"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-06T11:10:33.824135Z"},"ingestedAt":"2026-10-06T10:55:47.392Z","slug":"CVE-2026-84854","body":"## Overview\n\nIn the WibuKey driver for Windows below Version 6.72, insufficient validation of user input when calculating the size of a kernel buffer could cause small amounts of data to be written outside the intended kernel buffer. This can lead to a system crash. Under unfavorable circumstances, adjacent kernel memory may be modified.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}