Use-After-Free Vulnerability in FreeRDP Remote Desktop Implementation
CVE-2026-24491

7.7HIGH

Key Information:

Vendor

Freerdp

Status
Freerdp
Vendor
CVE Published:
9 February 2026

What is CVE-2026-24491?

FreeRDP, an open-source implementation of the Remote Desktop Protocol, has a vulnerability in versions prior to 3.22.0. The issue arises from the video_timer component, which can send notifications to the client even after the control channel has been closed, leading to potential dereferencing of a freed callback. This flaw may allow attackers to exploit memory management issues, resulting in undefined behavior or application crashes. Upgrading to version 3.22.0 effectively mitigates this vulnerability.

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Affected Version(s)

FreeRDP < 3.22.0

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/FreeRDP/FreeRDP/commit/e02e052f6692550...
x_refsource_MISC

CVSS V4

Score:
7.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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