Bug 2502766 (CVE-2026-64621)

Summary:	CVE-2026-64621 FreeRDP: FreeRDP: Double-free vulnerability via crafted .rdp file leading to potential remote code execution
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. A double-free vulnerability exists when a FreeRDP client processes a specially crafted `.rdp` connection file. An attacker could convince a victim to open a malicious `.rdp` file, leading to a size-controlled double-free. This could potentially allow for arbitrary code execution on the affected system.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2502823, 2502824, 2502825
Bug Blocks:

Description OSIDB Bzimport 2026-07-20 13:02:35 UTC

FreeRDP before 3.28.0 (affected 3.x through 3.27.1) contains a double-free vulnerability in freerdp_client_rdp_file_apply_to_settings() (client/common/file.c) when parsing the selectedmonitors field of a .rdp connection file. The MonitorIds array is allocated through the settings object, and a raw non-owning pointer to it is freed on the strtoul error path without clearing settings->MonitorIds, leaving it dangling; at teardown freerdp_settings_free() frees the same buffer again. An attacker who convinces a victim to open a crafted .rdp file with oversized monitor tokens can trigger a size-controlled double-free in any FreeRDP CLI client (xfreerdp/sdl-freerdp/wlfreerdp) in the default configuration.

Comment 2 errata-xmlrpc 2026-08-13 08:25:23 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:54486 https://access.redhat.com/errata/RHSA-2026:54486

Comment 3 errata-xmlrpc 2026-08-24 05:29:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:58711 https://access.redhat.com/errata/RHSA-2026:58711