WINDOWS SMART CARD · CVE-2026-112794 · Infrastructure
NO FIX YET
A heap-based buffer overflow in the Windows Smart Card component lets a logged-in attacker corrupt memory and elevate their privileges on the machine. The sources rate it high severity (CVSS 7.8) and report no known exploitation.
first public Nov 10, 2026 · 1 source
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Windows machines using the Smart Card component, where an attacker already has an authorized local account can escalate privileges. Systems without a local attacker who can log in, or without smart card use, are less exposed; the sources do not say which Windows builds are affected.
Not affected if no-local-untrusted-users
Who cares smart-card, windows
Unknown from the sources. In the analyst’s queue.
No fix yet, per the sources.
Heap-based buffer overflow in Windows Smart Card allows an authorized attacker to elevate privileges locally.
This page as .md · .json · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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