Dashboard / CVE-2026-121950

CVE-2026-121950

HIGH
MEDIUM Priority: 0.02 BB Relevance: 64/100
Published: 2026-11-04 Modified: 2026-11-05 First seen: 2026-11-04 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Passive
S: X
AT: None
VC: None
VI: None
VA: High

Description

FreeRDP before 3.32.2 does not check the product of surface dimensions in gdi_CreateSurface when handling an RDPGFX CREATE_SURFACE PDU, causing an integer wrap and heap buffer overflow on 32-bit builds and an approximately 4 GiB allocation on 64-bit builds. A malicious RDP server can send a CREATE_SURFACE PDU with width and height 32766 to a connecting client to corrupt heap memory or cause a denial of service.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
FreeRDP FreeRDP 0 < 3.32.2
FreeRDP FreeRDP 0 < 3.32.2
freerdp freerdp < 3.32.2

References & Advisories (2)

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

7.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.34%
Raw Score 0.003350
Percentile 27.3%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00335
2026-11-13
0.00335
2026-11-12
0.00335
2026-11-10
0.00335
2026-11-09
0.00335
2026-11-08
0.00335
2026-11-07
0.00335
2026-11-06
0.00335
2026-11-05
0.00330

Intelligence Sources

mitre ref →
nvd ref →

External Links