Is CVE-2023-0839 actively exploited?

No active exploitation of CVE-2023-0839 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-0839 be exploited remotely?

Yes. CVE-2023-0839 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-0839?

CVE-2023-0839 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-0839

CRITICAL

CVE-2023-0839

CWE-1320Published: March 6, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Improper Protection for Outbound Error Messages and Alert Signals vulnerability in ProMIS Process Co. InSCADA allows Account Footprinting.

This issue affects inSCADA: before 20230115-1.

NVD Source

Technical Analysis

CVE-2023-0839 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 9.8.