CVE-2025-6703

A packet size handling flaw has been discovered in neqo-transport. If a server is prompted to send a packet larger than the maximum variant allowed, it will attempt to do so and panic, resulting in a program crash.

The impact for this vulnerability in neqo-transport is rated as a low for Red Hat products as the denial of service is limited to the process using neqo-transport and not to the broader system.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.