CVE-2023-39352: Debian Linux

Critical severity, CVSS 9.8. EPSS: 1.5% chance of exploitation in the next 30 days.

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an invalid offset validation leading to Out Of Bound Write. This can be triggered when the values `rect->left` and `rect->top` are exactly equal to `surface->width` and `surface->height`. eg. `rect->left` == `surface->width` && `rect->top` == `surface->height`. In practice this should cause 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.

Affected products

• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 37 only; version 38 only; version 39 only
• Freerdp Freerdp: before 2.11.0 (fixed in 2.11.0); version 3.0.0 only

Published 2023-08-31. Last modified 2026-06-17.