Is CVE-2026-27951 actively exploited?

No active exploitation of CVE-2026-27951 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27951 be exploited remotely?

Yes. CVE-2026-27951 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27951?

CVE-2026-27951 has a CVSS score of 7.5 (HIGH) and an EPSS exploitation probability of 0.04%.

HOME VULNERABILITIESCVE-2026-27951

HIGH

CVE-2026-27951

CWE-190Published: February 25, 2026· Updated: Feb 27, 2026

7.5

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-27951 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.