CVE-2022-24375: The package node-opcua before 2.74.0 are vulnerable to Denial of Service (DoS) when bypassing the limitations

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HIGH 7.5REMOTEUPGRADE

CVE-2022-24375 is a high-severity flaw (CVSS 7.5) affecting node-opcua. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The package node-opcua before 2.74.0 are vulnerable to Denial of Service (DoS) when bypassing the limitations for excessive memory consumption by sending multiple CloseSession requests with the deleteSubscription parameter equal to False.

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	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-400
Published	2022-08-24
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: node-opcua project

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

Am I affected?

Timeline

2022-08-24 05:15 UTCPublished CVE record published
2026-06-17 04:31 UTCUpdated Record last modified

node-opcua project node-opcua UPGRADE

Affected: < 2.74.0

Fixed in: 2.74.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls node-opcua

2. UPGRADE to 2.74.0

npm install node-opcua@">=2.74.0"

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-2022-24375?

node-opcua: upgrade to 2.74.0. Exact commands for each OS are on this page.

Is CVE-2022-24375 being exploited?

CVE-2022-24375 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-2022-24375 affect?

CVE-2022-24375 affects node-opcua. Severity is high (CVSS 7.5). The package node-opcua before 2.74.0 are vulnerable to Denial of Service (DoS) when bypassing the limitations for excessive memory consumption by sending multiple CloseSession requests with the deleteSubscription parameter equal to False.

How urgent is CVE-2022-24375?

Priority 50/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-25231 HIGH 7.5 UPGRADE The package node-opcua before 2.74.0 are vulnerable to Denial of Service (DoS) by sending a specifically craft
CVE-2022-21208 HIGH 7.5 UPGRADE The package node-opcua before 2.74.0 are vulnerable to Denial of Service (DoS) due to a missing limitation on

References

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