Dashboard / CVE-2026-121398

CVE-2026-121398

HIGH
MEDIUM Priority: 0.02 BB Relevance: 66/100
Published: 2026-11-03 Modified: 2026-11-07 First seen: 2026-11-03 Status: active

Attack Surface

Network No Auth No Interaction

CVSS Vector Breakdown

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

Description

FreeRDP before 3.32.2 contains a cross-thread use-after-free vulnerability in the freerdp-proxy dyn-channel-dump module during session teardown. A malicious RDP target can send dynamic channel data while the front client disconnects, letting the client thread read freed ChannelData and crash the proxy process.

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

66 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

8.2 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/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

0.25%
Raw Score 0.002500
Percentile 16.5%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00250
2026-11-13
0.00250
2026-11-12
0.00250
2026-11-10
0.00250
2026-11-09
0.00250
2026-11-08
0.00250
2026-11-07
0.00250
2026-11-06
0.00250
2026-11-05
0.00250
2026-11-04
0.00250

Intelligence Sources

mitre ref →
nvd ref →

External Links