CVE-2026-25941

HIGH EPSS 20.1%
Published Feb 25, 20264mo ago · Modified Jun 17, 20261w ago
8.1 CVSS 3.1
High
Find Similar
Published Feb 25, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Versions on the 2.x branch prior to to 2.11.8 and on the 3.x branch prior to 3.23.0 have an out-of-bounds read vulnerability in the FreeRDP client's RDPGFX channel that allows a malicious RDP server to read uninitialized heap memory by sending a crafted WIRE_TO_SURFACE_2 PDU with a `bitmapDataLength` value larger than the actual data in the packet. This can lead to information disclosure or client crashes when a user connects to a malicious server. Versions 2.11.8 and 3.23.0 fix the issue.

CVSS Details

Base Score
8.1
Exploitability
2.8
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
20.1% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-125 Out-of-bounds Read Memory Safety
CWE-20 Improper Input Validation Validation

Affected Products 2

VendorProductVersionRange
freerdpfreerdp*≥2.0.0  –  <2.11.8
freerdpfreerdp*≥3.0.0  –  <3.23.0

References 2

  • github.com https://github.com/FreeRDP/FreeRDP/commit/2e3b77e28ac6a398897d28ba464dcc5dfab9c9e2
    Patch
  • github.com https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3546-x645-5cf8
    ExploitMitigationPatchVendor Advisory

Remediation

  • github.com https://github.com/FreeRDP/FreeRDP/commit/2e3b77e28ac6a398897d28ba464dcc5dfab9c9e2
    Patch
  • github.com https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3546-x645-5cf8
    ExploitMitigationPatchVendor Advisory