Bug 2565875 (CVE-2026-121399) - CVE-2026-121399 freerdp: FreeRDP: Denial of service via excessive memory allocation in RD Gateway packet handling
Summary: CVE-2026-121399 freerdp: FreeRDP: Denial of service via excessive memory allo...
Keywords:
Status: NEW
Alias: CVE-2026-121399
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2565985 2565987
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-03 15:20 UTC by OSIDB Bzimport
Modified: 2026-11-03 17:19 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Last Closed:
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Description OSIDB Bzimport 2026-11-03 15:20:18 UTC 
FreeRDP before 3.32.2 contains a memory allocation vulnerability in rdg_receive_packet that allows a malicious RD Gateway to force a 2 GiB client allocation before tunnel authentication. Attackers can send an eight-byte RDG header declaring packet length 0x7FFFFFFF to trigger pre-authentication memory exhaustion and denial of service.
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