{"id":"CVE-2026-84854","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-84854","generatedAt":"2026-10-28T01:11:47.533Z","title":"This can lead to a system crash.","description":"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 a system crash. Under unfavorable circumstances, adjacent kernel memory may be modified.","published":"2026-10-06T10:16:54.000Z","lastModified":"2026-10-15T02:20:17.000Z","status":"Deferred","sourceIdentifier":"2fc02b1f-71e7-4514-a878-169626f68903","cvss":{"version":"3.1","score":7,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":[],"epss":{"score":0.00105,"percentile":0.01041,"date":"2026-10-26","history":[{"date":"2026-10-07","score":0.00094,"percentile":0.00549}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.10%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-06T10:16:54.000Z","detail":{"score":"7.0","severity":"HIGH","publishedAt":"2026-10-06T10:16:54.230Z"},"summary":"New CVE, high severity (CVSS 7.0)."}],"references":[{"url":"https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-100065.pdf","source":"2fc02b1f-71e7-4514-a878-169626f68903"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-148322.html","source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-84854","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}