Is CVE-2022-21208 in the CISA KEV catalog?

No. CVE-2022-21208 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-21208?

CVE-2022-21208 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2022-21208?

CVE-2022-21208 has an EPSS score of 1.17% (63th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-21208?

Upgrade node-opcua to 2.74.0 or later.

CVE & CISA-KEV Catalog

CVE-2022-21208

HIGH

7.5

CVSS v3

NVD

Description

The package node-opcua before 2.74.0 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.

CWE-1284

How to fix

Remediation Available

node-opcuaNVD

Affected:< 2.74.0Fixed in:2.74.0CVE-2022-21208derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.17%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Patch3

Third-Party Advisory1

security.snyk.io

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.