CVE-2023-37572: Softing OPC Suite version 5.25 and before has Incorrect Access Control, allows attackers to obtain sensitive i

Q: How do I fix CVE-2023-37572?

opc: upgrade to 5.30. Exact commands for each OS are on this page.

Q: Is CVE-2023-37572 being exploited?

CVE-2023-37572 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-2023-37572 affect?

CVE-2023-37572 affects opc. Severity is high (CVSS 7.5). Softing OPC Suite version 5.25 and before has Incorrect Access Control, allows attackers to obtain sensitive information via weak permissions in OSF_discovery service. The service executable could be changed or the service could be deleted.

Q: How urgent is CVE-2023-37572?

Priority 43/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2023-37572 is a high-severity flaw (CVSS 7.5) affecting opc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Softing OPC Suite version 5.25 and before has Incorrect Access Control, allows attackers to obtain sensitive information via weak permissions in OSF_discovery service. The service executable could be changed or the service could be deleted.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-276
Published	2023-12-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: softing

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

Am I affected?

Timeline

2023-12-05 06:15 UTCPublished CVE record published
2026-06-17 06:08 UTCUpdated Record last modified

softing opc UPGRADE

Affected: < 5.30

Fixed in: 5.30

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 5.30 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opc

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-2023-37572?

opc: upgrade to 5.30. Exact commands for each OS are on this page.

Is CVE-2023-37572 being exploited?

CVE-2023-37572 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-2023-37572 affect?

CVE-2023-37572 affects opc. Severity is high (CVSS 7.5). Softing OPC Suite version 5.25 and before has Incorrect Access Control, allows attackers to obtain sensitive information via weak permissions in OSF_discovery service. The service executable could be changed or the service could be deleted.

How urgent is CVE-2023-37572?

Priority 43/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-41151 HIGH 7.5 UPGRADE UPGRADE An uncaught exception issue discovered in Softing OPC UA C++ SDK before 6.30 for Windows operating system may

References

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