CVE-2026-27951
Medium
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function `Stream_EnsureCapacity` can create an endless blocking loop. This may affect all client and server implementations using `FreeRDP`. For practical exploitation this will only work on 32bit systems where the available physical memory is `>= SIZE_MAX`. Version 3.23.0 contains a patch. No known workarounds are available.
SeverityMedium
CVSS5.3
Exploit probability—
ProductFreerdp
PublishedFeb 25, 2026
First seenFeb 25, 2026
Weakness typeCWE-190Integer overflow
How to fix
Update
- freerdp freerdp3.23.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freerdp freerdp | v < 3.23.0 | 3.23.0 |
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