CVE-2026-83791

7.8High

Published 13 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash

7.8High

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-283

Impact

Local attackers with standard user access can elevate privileges to SYSTEM. They need prior local authentication to execute code on the target machine.

Root cause

Windows Virtual Input improperly validates authorization checks, allowing lower-privileged users to trigger privileged actions.

Affected systems

Versions not listed — check the vendor advisory.

CVSS v3.1 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fix & remediation

Install the latest Windows security update addressing this advisory from Microsoft MSRC; no interim mitigation or workaround is provided in the advisory.

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

Improper authorization in Windows Virtual Input allows an authorized attacker to elevate privileges locally.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83791

Source: nvd.nist.gov/vuln/detail/CVE-2026-83791