---
id: "CVE-2026-114042"
kind: "vulnerability"
aliases: ["CVE-2026-114042"]
title: "FreeRDP: malicious RDP server can crash client via use-after-free"
severity: "high"
cvss: 7.1
epss: 0.00254
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["freerdp", "linux", "package", "rdp-clients", "windows"]
not_affected_if: ["no-untrusted-rdp-servers"]
published_at: "2026-10-21T01:17:26+00:00"
first_seen_at: "2026-10-23T21:57:27+00:00"
updated_at: "2026-10-25T03:34:05+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114042", "first_seen_at": "2026-10-23T21:57:27+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-114042", "first_seen_at": "2026-10-24T13:15:55+00:00"}]
---

# FreeRDP: malicious RDP server can crash client via use-after-free

FreeRDP 3.32.0 frees a pool-owned stream in the drdynvc channel when totalLength is smaller than the chunk size, causing a use-after-free. A malicious RDP server can send one crafted Virtual Channel PDU to crash the client during teardown.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed FreeRDP version with `xfreerdp --version` or the package manager, and look for `3.32.0`.
- unknown

## Fix

- Upgrade FreeRDP past `3.32.0` once a fixed release is published; the sources do not name a fixed version.
- unknown

## Timeline

- 2026-10-23T21:57:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-114042
- 2026-10-24T13:15:55+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-114042

## From the sources

FreeRDP 3.32.0 contains a use-after-free vulnerability in the drdynvc channel that frees a pool-owned stream with the owned-stream deallocator when totalLength is smaller than the chunk size. A malicious RDP server can send a single well-formed Virtual Channel PDU to trigger the free and crash the client during teardown.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_