CVE-2026-25941

HIGH
MEDIUM Priority: 0.03 BB Relevance: 66/100
Published: 2026-02-25 Modified: 2026-11-03 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: None
A: High

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.

Affected Software (3)

VendorProductVersion
FreeRDP FreeRDP >= 2.0.0, < 2.11.8
FreeRDP FreeRDP >= 3.0.0, < 3.23.0
freerdp freerdp 2.0.0 – 2.11.8

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

8.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

EPSS — Exploitation Probability

0.33%
Raw Score 0.003340
Percentile 27.2%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00334
2026-11-13
0.00334
2026-11-12
0.00334
2026-11-10
0.00334
2026-11-09
0.00334
2026-11-08
0.00334
2026-11-07
0.00334
2026-11-06
0.00334
2026-11-05
0.00334
2026-11-04
0.00334
2026-11-03
0.00334

Intelligence Sources

mitre ref →
nvd ref →