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

Q: How do I fix CVE-2023-41151?

opc: upgrade to newer than 5.30; opc ua c\+\+ software development kit: upgrade to newer than 6.20.1; secure integration server: upgrade to newer than 1.22. Exact commands for each OS are on this page.

Q: Is CVE-2023-41151 being exploited?

CVE-2023-41151 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-2023-41151 affect?

CVE-2023-41151 affects opc, opc ua c\+\+ software development kit, secure integration server. Severity is high (CVSS 7.5). An uncaught exception issue discovered in Softing OPC UA C++ SDK before 6.30 for Windows operating system may cause the application to crash when the server wants to send an error packet, while socket is blocked on writing.

Q: How urgent is CVE-2023-41151?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADEUPGRADEUPGRADE

CVE-2023-41151 is a high-severity flaw (CVSS 7.5) affecting opc, opc ua c\+\+ software development kit, secure integration server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An uncaught exception issue discovered in Softing OPC UA C++ SDK before 6.30 for Windows operating system may cause the application to crash when the server wants to send an error packet, while socket is blocked on writing.

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	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-755, CWE-400
Published	2023-12-14
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

2023-12-14 19:15 UTCPublished CVE record published
2026-06-17 06:20 UTCUpdated Record last modified

softing opc UPGRADE

Affected: <= 5.30

Fixed in: newer than 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 newer than 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.

softing opc ua c\+\+ software development kit UPGRADE

Affected: <= 6.20.1

Fixed in: newer than 6.20.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy opc-ua-c++-software-development-kit || rpm -q opc-ua-c++-software-development-kit || opc-ua-c++-software-development-kit --version

2. UPGRADE to newer than 6.20.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade opc-ua-c++-software-development-kit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opc-ua-c++-software-development-kit

Note

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

softing secure integration server UPGRADE

Affected: <= 1.22

Fixed in: newer than 1.22

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy secure-integration-server || rpm -q secure-integration-server || secure-integration-server --version

2. UPGRADE to newer than 1.22 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade secure-integration-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade secure-integration-server

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-2023-41151?

opc: upgrade to newer than 5.30; opc ua c\+\+ software development kit: upgrade to newer than 6.20.1; secure integration server: upgrade to newer than 1.22. Exact commands for each OS are on this page.

Is CVE-2023-41151 being exploited?

CVE-2023-41151 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-2023-41151 affect?

CVE-2023-41151 affects opc, opc ua c\+\+ software development kit, secure integration server. Severity is high (CVSS 7.5). An uncaught exception issue discovered in Softing OPC UA C++ SDK before 6.30 for Windows operating system may cause the application to crash when the server wants to send an error packet, while socket is blocked on writing.

How urgent is CVE-2023-41151?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

Software pages

Windows vulnerabilities

Related CVEs

CVE-2023-37572 HIGH 7.5 UPGRADE Softing OPC Suite version 5.25 and before has Incorrect Access Control, allows attackers to obtain sensitive i

References

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