#VU125353 Out-of-bounds read in FreeRDP - CVE-2026-25942
Published: April 8, 2026
Vulnerability identifier: #VU125353
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-25942
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
FreeRDP
FreeRDP
Software vendor:
FreeRDP
FreeRDP
Description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds read in xf_rail_server_execute_result when processing a server-supplied TS_RAIL_ORDER_EXEC_RESULT PDU. A remote attacker can send a specially crafted execResult value to cause a denial of service.
The issue is triggered when the server provides an execResult value of 7 or greater, which is used as an unchecked index into the global error_code_names array.
Remediation
Install security update from vendor's website.