CVE-2023-0839: Improper Protection for Outbound Error Messages and Alert Signals vulnerability in ProMIS Process Co

Q: How do I fix CVE-2023-0839?

inscada: upgrade to 20230115-1. Exact commands for each OS are on this page.

Q: Is CVE-2023-0839 being exploited?

CVE-2023-0839 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-0839 affect?

CVE-2023-0839 affects inscada. Severity is critical (CVSS 9.8). 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.

Q: How urgent is CVE-2023-0839?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-0839 is a critical-severity flaw (CVSS 9.8) affecting inscada. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 49%)
CISA exploited list	No
Weakness	CWE-1320
Published	2023-03-06
Last modified	2026-06-17

Publisher (CNA): Computer Emergency Response Team of the Republic of Turkey · Vendor: inscada project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-03-06 08:15 UTCPublished CVE record published
2026-06-17 05:26 UTCUpdated Record last modified

inscada project inscada UPGRADE

Affected: < 20230115-1

Fixed in: 20230115-1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy inscada || rpm -q inscada || inscada --version

2. UPGRADE to 20230115-1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade inscada

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade inscada

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-0839?

inscada: upgrade to 20230115-1. Exact commands for each OS are on this page.

Is CVE-2023-0839 being exploited?

CVE-2023-0839 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-0839 affect?

CVE-2023-0839 affects inscada. Severity is critical (CVSS 9.8). 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.

How urgent is CVE-2023-0839?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

References

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