---
id: CVE-2026-109948
title: >-
  FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure
  vulnerability in smartcard_Transmit_Call that allows malicious RDP servers to
  read client memory
summary: >-
  FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure
  vulnerability in smartcard_Transmit_Call that allows malicious RDP servers to
  read client memory. Servers can send SCardTransmit requests with an invalid
  card h…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'
cwe:
  - CWE-200
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T14:17:33.260'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109948'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f554-v4xw-5j39'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-memory-disclosure-via-scardtransmit-smartcard-redirection
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-13T14:29:01.852Z'
---

## Overview

FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcard_Transmit_Call that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing smartcard_pack_transmit_return to serialize up to 66,560 uninitialized heap bytes.

## Remediation

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