CVE-2022-24381: All versions of package asneg/opcuastack are vulnerable to Denial of Service (DoS) due to a missing limitation

This month

HIGH 7.5REMOTEMITIGATE

CVE-2022-24381 is a high-severity flaw (CVSS 7.5) affecting opc ua stack. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

All versions of package asneg/opcuastack are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-770
Published	2022-08-23
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: asneg

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

Am I affected?

Timeline

2022-08-23 05:15 UTCPublished CVE record published
2026-06-17 04:31 UTCUpdated Record last modified

asneg opc ua stack MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2022-24381?

opc ua stack: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-24381 being exploited?

CVE-2022-24381 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-2022-24381 affect?

CVE-2022-24381 affects opc ua stack. Severity is high (CVSS 7.5). All versions of package asneg/opcuastack are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulne

How urgent is CVE-2022-24381?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-25302 HIGH 7.5 MITIGATE All versions of package asneg/opcuastack are vulnerable to Denial of Service (DoS) due to a missing handler fo

References

← Back to latest CVEs