Bug 2567633 (CVE-2026-121950) - CVE-2026-121950 freerdp: FreeRDP: Heap buffer overflow via integer overflow in surface creation
Summary: CVE-2026-121950 freerdp: FreeRDP: Heap buffer overflow via integer overflow i...
Keywords:
Status: NEW
Alias: CVE-2026-121950
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-05 22:13 UTC by OSIDB Bzimport
Modified: 2026-11-06 12:52 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-11-05 22:13:40 UTC 
FreeRDP before 3.32.2 does not check the product of surface dimensions in gdi_CreateSurface when handling an RDPGFX CREATE_SURFACE PDU, causing an integer wrap and heap buffer overflow on 32-bit builds and an approximately 4 GiB allocation on 64-bit builds. A malicious RDP server can send a CREATE_SURFACE PDU with width and height 32766 to a connecting client to corrupt heap memory or cause a denial of service.
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