FreeRDP before 3.29.0 fails to properly validate server-supplied RDPDR paths in drive redirection, allowing attackers to access prefix-sibling paths outside the configured shared root. A malicious RDP server can read, write, delete, and enumerate files in sibling directories by sending non-rooted paths that bypass the shared-root boundary check.
CVSS Details
- CVSS 4.0 Base Score: 5.3 (MEDIUM)
- CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/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: 6.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade libwinpr-develUpgrade freerdp-develUpgrade freerdp-debugsourceUpgrade freerdp-debuginfoUpgrade freerdpUpgrade freerdp-serverUpgrade libwinpr-debuginfoUpgrade libwinprUpgrade freerdp-libs-debuginfoUpgrade freerdp-libsUpgrade freerdp-server-debuginfo | Sep 1, 2026 | Aug 1, 2026 |
| Redhat_linux | — | No solution exists | Aug 4, 2026 | Aug 1, 2026 |
| Ubuntu | — | Upgrade freerdp3 | Aug 17, 2026 | Aug 1, 2026 |
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