---
id: CVE-2026-110830
title: >-
  FreeRDP before 3.32.0 fails to close prior serial handles in
  serial_process_irp_create, allowing a malicious RDP server to exhaust file
  descriptors
summary: >-
  FreeRDP before 3.32.0 fails to close prior serial handles in
  serial_process_irp_create, allowing a malicious RDP server to exhaust file
  descriptors. Attackers can send repeated serial IRP_MJ_CREATE requests to
  accumulate descriptors and …
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T23:17:22.737'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110830'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mqxv-c882-m8w9'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-before-3.32.0-denial-of-service-via-serial-irp-mj-create
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-15T00:02:07.170Z'
---

## Overview

FreeRDP before 3.32.0 fails to close prior serial handles in serial_process_irp_create, allowing a malicious RDP server to exhaust file descriptors. Attackers can send repeated serial IRP_MJ_CREATE requests to accumulate descriptors and terminate the client at the CommReadFile FD_SETSIZE assertion.

## Remediation

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