Is CVE-2023-30856 actively exploited?

No active exploitation of CVE-2023-30856 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-30856 be exploited remotely?

Yes. CVE-2023-30856 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-30856?

CVE-2023-30856 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2023-30856

CRITICAL

CVE-2023-30856

CWE-346Published: April 28, 2023· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

eDEX-UI is a science fiction terminal emulator. Versions 2.2.8 and prior are vulnerable to cross-site websocket hijacking. When running eDEX-UI and browsing the web, a malicious website can connect to eDEX's internal terminal control websocket, and send arbitrary commands to the shell. The project has been archived since 2021, and as of time of publication there are no plans to patch this issue and release a new version. Some workarounds are available, including shutting down eDEX-UI when browsing the web and ensuring the eDEX terminal runs with lowest possible privileges.

NVD Source

Technical Analysis

CVE-2023-30856 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.