CVE-2022-2561: This vulnerability allows remote attackers to execute arbitrary code on affected installations of OPC Labs Qui

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HIGH 7.8UPGRADE

CVE-2022-2561 is a high-severity flaw (CVSS 7.8) affecting quickopc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of OPC Labs QuickOPC 2022.1. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of XML files in Connectivity Explorer. The issue results from the lack of proper validation of user-supplied data, which can result in deserializat

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 42%)
CISA exploited list	No
Weakness	CWE-502
Published	2023-03-29
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: opclabs

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

Am I affected?

Timeline

2023-03-29 19:15 UTCPublished CVE record published
2026-06-17 04:42 UTCUpdated Record last modified

opclabs quickopc UPGRADE

Affected: >= 5.63 and < 5.63.246

Fixed in: 5.63.246

Safe to downgrade to: a release before 5.63

1. Check installed version

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

2. UPGRADE to 5.63.246 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade quickopc

Note

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

3. If no update is available yet, DOWNGRADE to a release before 5.63 (Debian / Ubuntu)

apt-cache madison quickopc sudo apt install quickopc=<VERSION_BEFORE_5.63> sudo apt-mark hold quickopc

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list quickopc sudo dnf downgrade quickopc-<VERSION_BEFORE_5.63> sudo dnf versionlock add quickopc

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.

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-2022-2561?

quickopc: upgrade to 5.63.246. Exact commands for each OS are on this page.

Is CVE-2022-2561 being exploited?

CVE-2022-2561 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-2022-2561 affect?

CVE-2022-2561 affects quickopc. Severity is high (CVSS 7.8). This vulnerability allows remote attackers to execute arbitrary code on affected installations of OPC Labs QuickOPC 2022.1. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a

How urgent is CVE-2022-2561?

Priority 42/100. High severity

References

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