---
id: CVE-2026-109938
title: >-
  Positive mapped-video coordinates overflow and abort FreeRDP clients A
  malicious or compromised RDP server can terminate a FreeRDP client after the
  user connects with video redirection enabled.
summary: >-
  Positive mapped-video coordinates overflow and abort FreeRDP clients A
  malicious or compromised RDP server can terminate a FreeRDP client after the
  user connects with video redirection enabled.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-190
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP >= 3.11.0 < 3.32.0
published: '2026-10-13'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T15:54:26.210'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109938'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-96rv-gf42-7wq9'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-3.11.0-before-3.32.0-integer-overflow-via-mapped-video-geometry-update
    label: disclosure@vulncheck.com
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-96rv-gf42-7wq9'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-109938.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-109938'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2550535'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-109938'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109938'
tags:
  - nvd
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
epss: 0.00326
epssPercentile: 0.25484
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-14T14:01:30.301146Z'
ingestedAt: '2026-10-13T14:29:01.848Z'
---

## Overview

Positive mapped-video coordinates overflow and abort FreeRDP clients A malicious or compromised RDP server can terminate a FreeRDP client after the user connects with video redirection enabled.

## 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 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-109938.json)