Bug 2533913 (CVE-2026-91946) - CVE-2026-91946 FreeRDP: FreeRDP: Information Disclosure via RDPGFX ResetGraphics PDU
Summary: CVE-2026-91946 FreeRDP: FreeRDP: Information Disclosure via RDPGFX ResetGraph...
Keywords:
Status: NEW
Alias: CVE-2026-91946
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: 2534063 2534064
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-15 15:48 UTC by OSIDB Bzimport
Modified: 2026-09-15 18:11 UTC (History)
2 users (show)

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

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Description OSIDB Bzimport 2026-09-15 15:48:51 UTC 
FreeRDP versions before 3.31.0 contain an information disclosure vulnerability in the RDPGFX server's ResetGraphics PDU serializer that fails to initialize padding bytes in the fixed 340-byte wire format. Attackers can receive uninitialized heap memory including live pointers and GLib function addresses transmitted in the PDU, defeating heap ASLR and disclosing the GLib module base address.
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