cvedb.io
CVE-2021-42073
HIGH · CVSS 8.2
EPSS exploitation probability: 0%
Published 2021-11-08T04:15:08.500 · Last modified 2026-06-17T04:09:15.847

Summary

An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is "Unnamed" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server.

Affected products

barrier_project — barrier

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.