CVE-2026-24676CWE-416

FreeRDP has a heap-use-after-free in audio_format_compatible

High · published February 9, 2026

CVSS v4.0
7.7
EPSS
1%
Percentile
44.1
In the wild
Unconfirmed
What it is

⚡ A clever use-after-free vulnerability lurks in FreeRDP that could leave your audio thread gasping for air! 🔥 Think of it like a hotel that mistakenly gives away your room key after you've checked in, but the staff keeps using your room for housekeeping. They’re still in your space while you’re left without a key to get back in! If exploited, this vulnerability could lead to unexpected behavior in your audio channels, potentially crashing services or allowing unauthorized access to system resources. This could be absolutely devastating for users relying on stable Remote Desktop connections, creating chaos in both personal and professional settings.

Put simply

Think of it like a hotel that mistakenly gives away your room key after you've checked in, but the staff keeps using your room for housekeeping. They’re still in your space while you’re left without a key to get back in! The vulnerability arises in FreeRDP when the AUDIN format renegotiation frees the active format list. This happens while the capture thread continues using a pointer to the freed memory, leading to a use-after-free situation in the audio_format_compatible function.

What to do

If exploited, this vulnerability could lead to unexpected behavior in your audio channels, potentially crashing services or allowing unauthorized access to system resources. This could be absolutely devastating for users relying on stable Remote Desktop connections, creating chaos in both personal and professional settings. Upgrade FreeRDP immediately to version 3.22.0 to patch this vulnerability. It's also a good idea to review your application's dependency management to ensure you're using the latest stable releases. Don't ignore the importance of regular updates to keep everything secure! You've got this! By taking these steps, you'll ensure your Remote Desktop setup is back on track and more secure than ever! 🛡️

The record
Technical detail
CVSS v4.0
7.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.00530 · 44.1th percentile
Weakness
CWE-416 · Use After Free
Published
2026-02-09T18:15Z
EPSS history
Timeline
  • 09 FEB 18:15Z
    FreeRDP has a heap-use-after-free in audio_format_compatible
    cvelistv5