FreeRDP up to 3.21.x video_timer use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in FreeRDP up to 3.21.x. The affected element is the function video_timer. Executing a manipulation can lead to use after free. This vulnerability is registered as CVE-2026-24491. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in FreeRDP up to 3.21.x and classified as critical. This vulnerability affects the function video_timer. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect availability. CVE summarizes:

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, video_timer can send client notifications after the control channel is closed, dereferencing a freed callback and triggering a use after free. This vulnerability is fixed in 3.22.0.

The advisory is available at github.com. This vulnerability was named CVE-2026-24491 since 01/23/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 299346 (Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : FreeRDP vulnerabilities (USN-8042-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.22.0 eliminates this vulnerability. Applying the patch e02e052f6692550e539d10f99de9c35a23492db2 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (299346) and CERT Bund (WID-SEC-2026-0244). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source FreeRDP

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 299346
Nessus Name: Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : FreeRDP vulnerabilities (USN-8042-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: FreeRDP 3.22.0
Patch: e02e052f6692550e539d10f99de9c35a23492db2

Timelineinfo

01/23/2026 CVE reserved
02/09/2026 +17 days Advisory disclosed
02/09/2026 +0 days VulDB entry created
02/25/2026 +16 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-4x6j-w49r-869g
Status: Confirmed

CVE: CVE-2026-24491 (🔒)
GCVE (CVE): GCVE-0-2026-24491
GCVE (VulDB): GCVE-100-345010
CERT Bund: WID-SEC-2026-0244 - FreeRDP: Mehrere Schwachstellen

Entryinfo

Created: 02/09/2026 21:14
Updated: 02/25/2026 23:26
Changes: 02/09/2026 21:14 (70), 02/10/2026 02:41 (1), 02/11/2026 11:24 (11), 02/18/2026 14:39 (2), 02/25/2026 23:26 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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