Vulnerability Database

310,472

Total vulnerabilities in the database

CVE-2023-39356

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a missing offset validation may lead to an Out Of Bound Read in the function gdi_multi_opaque_rect. In particular there is no code to validate if the value multi_opaque_rect->numRectangles is less than 45. Looping through multi_opaque_rect->numRectangles without proper boundary checks can lead to Out-of-Bounds Read errors which will likely lead to a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

  • Published: Aug 31, 2023
  • Updated: Nov 4, 2025
  • CVE: CVE-2023-39356
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.3
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWEs:

Software From Fixed in
freerdp / freerdp 3.0.0-beta1 3.0.0-beta1.x
freerdp / freerdp 3.0.0-beta2 3.0.0-beta2.x
freerdp / freerdp - 2.11.0
debian / debian_linux 10.0 10.0.x
fedoraproject / fedora 37 37.x
fedoraproject / fedora 38 38.x
fedoraproject / fedora 39 39.x