---
id: CVE-2026-109945
title: >-
  FreeRDP 3.0.0 before 3.32.0 contains a heap use-after-free vulnerability in
  smartcard emulation when SCARD_IOCTL_DISCONNECT and SCARD_IOCTL_TRANSMIT
  operate concurrently on one card handle
summary: >-
  FreeRDP 3.0.0 before 3.32.0 contains a heap use-after-free vulnerability in
  smartcard emulation when SCARD_IOCTL_DISCONNECT and SCARD_IOCTL_TRANSMIT
  operate concurrently on one card handle. A malicious RDP server can overlap
  these IRPs t…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-362
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T14:17:32.670'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109945'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rpr-jjjg-5qv6'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-smartcard-use-after-free-via-concurrent-disconnect-and-transmit
    label: disclosure@vulncheck.com
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rpr-jjjg-5qv6'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
ingestedAt: '2026-10-13T14:29:01.851Z'
---

## Overview

FreeRDP 3.0.0 before 3.32.0 contains a heap use-after-free vulnerability in smartcard emulation when SCARD_IOCTL_DISCONNECT and SCARD_IOCTL_TRANSMIT operate concurrently on one card handle. A malicious RDP server can overlap these IRPs through separate context workers to free and reuse the SCardHandle, causing client-process heap corruption and termination.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.