CVE-2026-54609 | BDVDB-2026-353272 Detail

Quiet-Terminal-InteractiveQTINeon

Description#

QTI Neon is a minimal, game-agnostic, relay-based UDP multiplayer protocol library. In version 1.0.0, the relay's handleReconnectRequest forwards RECONNECT_REQUEST packets to the host without bounding them, so an unauthenticated client can drive relay-to-host amplification and cause a denial of service on the host. No fixed version is available as of this review.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

CWE-400 Uncontrolled Resource Consumption
CWE-406 Insufficient Control of Network Message Volume (Network Amplification)
CWE-770 Allocation of Resources Without Limits or Throttling

References#

https://github.com/Quiet-Terminal-Interactive/QTINeon/security/advisories/GHSA-85rg-p3fr-xc2f

Exploit#

No public exploit known

History#

Version 12026-07-28Record published in the CVE List.

Published

Published: 2026-07-28
Last modified: 2026-07-28

Vendor information

Vendor: Quiet-Terminal-Interactive
Product: QTINeon

All Quiet-Terminal-Interactive vulnerabilities

Score

8.6 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 40.2.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Denial of Service

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
1.0.0
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.6 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Changed
Confidentiality	None
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).