CVE-2026-24684

Analyzed Analyzed - Analysis Complete

Use-After-Free in FreeRDP RDPSND Component Causes Crash

Publication date: 2026-02-09

Last updated on: 2026-02-10

Assigner: GitHub, Inc.

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, the RDPSND async playback thread can process queued PDUs after the channel is closed and internal state is freed, leading to a use after free in rdpsnd_treat_wave. This vulnerability is fixed in 3.22.0.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-02-09

Last Modified

2026-02-10

Generated

2026-07-06

AI Q&A

2026-02-09

EPSS Evaluated

2026-07-04

NVD

CVE-2026-24684

Affected Vendors & Products

Vendor	Product	Version / Range
freerdp	freerdp	to 3.22.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This vulnerability exists in FreeRDP, a free implementation of the Remote Desktop Protocol. Before version 3.22.0, the RDPSND async playback thread could process queued Protocol Data Units (PDUs) even after the communication channel was closed and its internal state was freed. This leads to a use-after-free condition in the function rdpsnd_treat_wave.

A use-after-free vulnerability occurs when a program continues to use memory after it has been freed, which can cause crashes or allow an attacker to execute arbitrary code.

This issue was fixed in FreeRDP version 3.22.0.

Impact Analysis

The use-after-free vulnerability in FreeRDP can lead to serious security impacts. Because the vulnerability involves accessing freed memory, it can potentially be exploited to execute arbitrary code, cause application crashes, or lead to denial of service.

Given the CVSS base score of 8.7, this vulnerability is considered high severity, indicating a significant risk if exploited.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

The vulnerability in FreeRDP is fixed in version 3.22.0. To mitigate this vulnerability, you should upgrade FreeRDP to version 3.22.0 or later.

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