Bug 2483480 (CVE-2026-44420) - CVE-2026-44420 freerdp: FreeRDP: Arbitrary code execution and denial of service via heap-buffer-overflow
Summary: CVE-2026-44420 freerdp: FreeRDP: Arbitrary code execution and denial of servi...
Keywords:
Status: NEW
Alias: CVE-2026-44420
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2491679 2491680 2491678
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-29 21:02 UTC by OSIDB Bzimport
Modified: 2026-07-07 13:53 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:36203 0 None None None 2026-07-07 13:53:23 UTC

Description OSIDB Bzimport 2026-05-29 21:02:19 UTC 
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server-side clipboard (cliprdr) channel by sending a CB_CLIP_CAPS PDU with a too-small capabilitySetLength. This can crash the server process (remote DoS) and may be exploitable for code execution because it corrupts heap memory. This vulnerability is fixed in 3.26.0.
Comment 3 errata-xmlrpc 2026-07-07 13:53:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:36203 https://access.redhat.com/errata/RHSA-2026:36203
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