CVE-2026-109248CWE-125

CVE-2026-109248

Medium · published October 12, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
16.7
In the wild
Unconfirmed
What it is

FreeRDP 3.0.0 before 3.32.0 contains a heap out-of-bounds read in the WinPR clipboard function convert_filedescriptors_to_file_list(), which scans a server-controlled FILEDESCRIPTORW cFileName with unbounded _wcschr() and count_special_chars() calls without a NUL-termination guarantee. A malicious RDP server can send an odd-length FILEDESCRIPTORW blob in a CB_FORMAT_DATA_RESPONSE, crashing X11, Wayland, and SDL clients when the user pastes server-copied files.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00259 · 16.7th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-10-12T21:17Z
References (3)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-jp2r-gm4v-wvq2 · [email protected]https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-heap-out-of-bounds-read-via-winpr-clipboard-cfilename · [email protected]https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-jp2r-gm4v-wvq2 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 16:04Z
    FreeRDP 3.0.0 before 3.32.0 Heap Out-of-Bounds Read via WinPR Clipboard cFileName
    cvelistv5
  • 12 OCT 16:04Z
    FreeRDP 3.0.0 before 3.32.0 Heap Out-of-Bounds Read via WinPR Clipboard cFileName
    cvelistv5