Heap-based buffer overflow in FreeRDP - #VU131104

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Main Vulnerability Database Vulnerabilities #VU131104

Heap-based buffer overflow in FreeRDP - #VU131104

Published: May 12, 2026


Vulnerability identifier: #VU131104
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
FreeRDP
Software vendor:
FreeRDP

Description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to heap-based buffer overflow in gdi_CacheToSurface when processing crafted RDPGFX PDUs from a server. A remote attacker can send crafted RDPGFX CacheToSurface messages to execute arbitrary code.

RDPGFX must be enabled, and user interaction is required to connect the client to an attacker-controlled RDP server.


Remediation

Install security update from vendor's website.

External links