---
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
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP >= 2.0.0-rc0 < 3.32.0
published: '2026-10-14'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:23.827'
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
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mqxv-c882-m8w9'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110830.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-110830'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2552970'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-110830'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110830'
tags:
  - nvd
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-15T18:12:07.527321Z'
ingestedAt: '2026-10-15T00:02:07.170Z'
epss: 0.00319
epssPercentile: 0.2471
---

## 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.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110830.json)