CVE-2026-109251
freerdp: FreeRDP: Denial of Service via invalid video geometry coordinates
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 13, 2026
Updated · October 14, 2026
Description
A flaw was found in FreeRDP. A malicious Remote Desktop Protocol (RDP) server can cause a Denial of Service (DoS) on a connecting client by supplying invalid geometry coordinates when video redirection is enabled. Because FreeRDP does not properly validate server-provided video coordinates, an integer calculation wraparound bypasses boundary checks, resulting in an out-of-bounds memory write and causing the client application to crash.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.3CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-787 · Out-of-bounds Write