Dashboard / CVE-2026-121406

CVE-2026-121406

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 61/100
Published: 2026-11-03 Modified: 2026-11-07 First seen: 2026-11-03 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: Low

Description

FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.

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

61 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

5.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/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

0.23%
Raw Score 0.002340
Percentile 14.5%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00234
2026-11-13
0.00234
2026-11-12
0.00234
2026-11-10
0.00234
2026-11-09
0.00234
2026-11-08
0.00234
2026-11-07
0.00234
2026-11-06
0.00234
2026-11-05
0.00234
2026-11-04
0.00234

Intelligence Sources

mitre ref →
nvd ref →

External Links