{"id":"CVE-2026-81579","aliases":["EUVD-2026-66984","GHSA-gqq4-6ppr-52p5"],"status":"published","title":"An untrusted Pointer Dereference can be exploited to escalate privileges by an unprivileged user on Windows","description":"In WibuKey for Windows before version 6.71, an untrusted pointer dereference in the WibuKey2_64.sys kernel driver for 64-bit Windows allows an attacker to exploit a write-what-where primitive, enabling local privilege escalation. This can be leveraged to execute arbitrary code, run an administrator shell, or gain full control over the system.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00167,"percentile":0.0607,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-123"],"published":"2026-08-27T07:42:28Z","modified":"2026-09-03T17:49:19Z","products":[{"vendor":"wibu-systems-ag","product":"wibukey"}],"references":[{"url":"https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-100031.pdf","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81579"},{"url":"https://github.com/advisories/GHSA-gqq4-6ppr-52p5"}],"sources":{"cve":[{"id":"CVE-2026-81579","title":"An untrusted Pointer Dereference can be exploited to escalate privileges by an unprivileged user on Windows","description":"In WibuKey for Windows before version 6.71, an untrusted pointer dereference in the WibuKey2_64.sys kernel driver for 64-bit Windows allows an attacker to exploit a write-what-where primitive, enabling local privilege escalation. This can be leveraged to execute arbitrary code, run an administrator shell, or gain full control over the system.","status":"published","published":"2026-08-27T07:42:28.626Z","modified":"2026-08-28T03:55:30.936Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-123"],"updated_at":"2026-11-02T13:36:29.327819Z"}],"euvd":[{"id":"EUVD-2026-66984","description":"In WibuKey for Windows before version 6.71, an untrusted pointer dereference in the WibuKey2_64.sys kernel driver for 64-bit Windows allows an attacker to exploit a write-what-where primitive, enabling local privilege escalation. This can be leveraged to execute arbitrary code, run an administrator shell, or gain full control over the system.","status":"published","published":"2026-08-27T07:42:28Z","modified":"2026-08-28T03:55:30Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:01:24.093932Z"}],"ghsa":[{"id":"GHSA-gqq4-6ppr-52p5","title":"In WibuKey for Windows before version 6.71, an untrusted pointer dereference in the WibuKey2_64...","description":"In WibuKey for Windows before version 6.71, an untrusted pointer dereference in the WibuKey2_64.sys kernel driver for 64-bit Windows allows an attacker to exploit a write-what-where primitive, enabling local privilege escalation. This can be leveraged to execute arbitrary code, run an administrator shell, or gain full control over the system.","status":"published","published":"2026-08-27T12:30:26Z","modified":"2026-08-27T12:30:27Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-123"],"updated_at":"2026-11-02T15:11:02.620282Z"}],"nvd":[{"id":"CVE-2026-81579","description":"In WibuKey for Windows before version 6.71, an untrusted pointer dereference in the WibuKey2_64.sys kernel driver for 64-bit Windows allows an attacker to exploit a write-what-where primitive, enabling local privilege escalation. This can be leveraged to execute arbitrary code, run an administrator shell, or gain full control over the system.","status":"published","published":"2026-08-27T10:16:40.457Z","modified":"2026-09-03T17:49:19.18Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-123"],"updated_at":"2026-11-02T14:12:42.035353Z"}]}}