Name: CVE-2026-64624: Improper Neutralization of Argument Delimiters in a Command
Creator: Rapid7
Published: 2026-07-20T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-64624, CWE-88, CVSS 7.8, EPSS 0.0018

FreeRDP before 3.28.0 treats lines beginning with forward slash in RDP files as raw command-line options, exposing the entire CLI parser surface to untrusted files. Attackers can craft malicious RDP files with /rdp2tcp, /cert:ignore, or /drive options to execute arbitrary commands, bypass certificate validation, or expose local filesystems without user interaction.

CVSS Details

CVSS 4.0 Base Score: 8.5 (HIGH)
CVSS 4.0 Vector: (CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
CVSS 3.1 Base Score: 7.8
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alma_linux	—	Upgrade freerdp-develUpgrade libwinpr-develUpgrade freerdpUpgrade libwinprUpgrade freerdp-libs	Oct 11, 2026	Aug 13, 2026
Amazon_linux_2023	—	Upgrade freerdp-debuginfoUpgrade libwinpr-debuginfoUpgrade freerdp-serverUpgrade freerdp-libsUpgrade freerdp-libs-debuginfoUpgrade libwinprUpgrade freerdpUpgrade freerdp-debugsourceUpgrade libwinpr-develUpgrade freerdp-develUpgrade freerdp-server-debuginfo	Sep 1, 2026	Jul 20, 2026
Redhat_linux	—	No solution existsUpgrade freerdp-libsUpgrade freerdp-libs-debuginfoUpgrade freerdp-debuginfoUpgrade freerdp-debugsourceUpgrade freerdp-serverUpgrade libwinpr-debuginfoUpgrade freerdp-develUpgrade libwinprUpgrade freerdpUpgrade libwinpr-develUpgrade freerdp-server-debuginfo	Jul 23, 2026	Jul 20, 2026
Rocky_linux	—	Upgrade libwinpr-debuginfoUpgrade freerdp-develUpgrade libwinprUpgrade freerdp-libs-debuginfoUpgrade freerdp-libsUpgrade freerdp-debuginfoUpgrade freerdp-debugsourceUpgrade libwinpr-develUpgrade freerdp	Aug 17, 2026	Aug 14, 2026
Ubuntu	—	Upgrade freerdp3	Jul 29, 2026	Jul 20, 2026

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence