---
id: "CVE-2026-114044"
kind: "vulnerability"
aliases: ["CVE-2026-114044"]
title: "FreeRDP Android client: malicious server can read heap memory out of bounds"
severity: "medium"
cvss: 6.9
epss: 0.0025
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["android", "freerdp", "package", "rdp", "remote-desktop"]
not_affected_if: ["desktop-only-builds", "trusted-servers-only"]
published_at: "2026-10-21T01:17:26+00:00"
first_seen_at: "2026-10-23T21:57:27+00:00"
updated_at: "2026-10-25T03:40:16+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114044", "first_seen_at": "2026-10-23T21:57:27+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-114044", "first_seen_at": "2026-10-24T13:15:55+00:00"}]
---

# FreeRDP Android client: malicious server can read heap memory out of bounds

FreeRDP before 3.32.1 Android client trusts mappedWidth and mappedHeight values from an RDP server without validation. A malicious server can send an oversized RDPGFX_MAP_SURFACE_TO_WINDOW_PDU, causing the client to copy heap memory past its buffer, leading to crashes or memory disclosure.

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

## How to check

- Check the FreeRDP version in use with `xfreerdp /version` or the app's about screen; affected builds are before `3.32.1`.
- Confirm whether the Android client build includes the vulnerable android_UpdateWindowFromSurface code path (unknown from sources).

## Fix

- Upgrade FreeRDP to `3.32.1` or later and rebuild or update the Android client.

## Timeline

- 2026-10-23T21:57:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-114044
- 2026-10-24T13:15:55+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-114044

## From the sources

FreeRDP before 3.32.1 contains a heap out-of-bounds read vulnerability in the Android client that allows malicious RDP servers to read beyond surface buffers by supplying unvalidated mappedWidth and mappedHeight values. Attackers can send a crafted RDPGFX_MAP_SURFACE_TO_WINDOW_PDU with oversized dimensions, causing android_UpdateWindowFromSurface to copy heap memory beyond the allocation, leading to crashes or memory disclosure.

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