CVE-2023-1934: The PnPSCADA system, a product of SDG Technologies CC, is afflicted by a critical unauthenticated error-based

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-1934 is a critical-severity flaw (CVSS 9.8) affecting pnpscada. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The PnPSCADA system, a product of SDG Technologies CC, is afflicted by a critical unauthenticated error-based PostgreSQL Injection vulnerability. Present within the hitlogcsv.jsp endpoint, this security flaw permits unauthenticated attackers to engage with the underlying database seamlessly and passively. Consequently, malicious actors could gain access to vital information, such as Industrial Control System (ICS) and OT data, alongside other sen

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	8.1% (top 5%)
CISA exploited list	No
Weakness	CWE-89
Published	2023-05-12
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: sdg

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

Am I affected?

Timeline

2023-05-12 14:15 UTCPublished CVE record published
2026-06-17 05:29 UTCUpdated Record last modified

sdg pnpscada DOWNGRADE

Affected: 2.200816204020

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.200816204020

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.200816204020 (Debian / Ubuntu)

apt-cache madison pnpscada sudo apt install pnpscada=<VERSION_BEFORE_2.200816204020> sudo apt-mark hold pnpscada

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pnpscada sudo dnf downgrade pnpscada-<VERSION_BEFORE_2.200816204020> sudo dnf versionlock add pnpscada

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: PnPSCADA v2.x - Unauthenticated PostgreSQL Injection

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-2023-1934?

pnpscada: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-1934 being exploited?

CVE-2023-1934 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-2023-1934 affect?

CVE-2023-1934 affects pnpscada. Severity is critical (CVSS 9.8). The PnPSCADA system, a product of SDG Technologies CC, is afflicted by a critical unauthenticated error-based PostgreSQL Injection vulnerability. Present within the hitlogcsv.jsp endpoint, this security flaw permits unauthenticated attacker

How urgent is CVE-2023-1934?

Priority 68/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PostgreSQL vulnerabilities

References

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