Is CVE-2022-36437 in the CISA KEV catalog?

No. CVE-2022-36437 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-36437?

CVE-2022-36437 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2022-36437?

CVE-2022-36437 has an EPSS score of 1.02% (59th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-36437?

Upgrade hazelcast to 5.1.3 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-36437

CRITICAL

9.1

CVSS v3

NVD

Description

The Connection handler in Hazelcast and Hazelcast Jet allows a remote unauthenticated attacker to access and manipulate data in the cluster with the identity of another already authenticated connection. The affected Hazelcast versions are through 4.0.6, 4.1.9, 4.2.5, 5.0.3, and 5.1.2. The affected Hazelcast Jet versions are through 4.5.3.

CWE-384

How to fix

Remediation Available

hazelcastNVD

Affected:>= 5.1.0, < 5.1.3Fixed in:5.1.3CVE-2022-36437derived from NVD

hazelcast-jetNVD

Affected:< 4.5.4Fixed in:4.5.4CVE-2022-36437derived 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

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.02%probability of exploitation in 30 days

59thpercentile

Moderate risk: more likely to be exploited than 59% of all known CVEs.

References

Third-Party Advisory1

github.com

Related Vulnerabilities

Other CWE-384 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-11714	Critical	9.8	37%	-	-
CVE-2018-18925	Critical	9.8	32%	-	-
CVE-2019-12258	High	7.5	23%	-	Fix
CVE-2018-17199	High	7.5	20%	-	Fix
CVE-2019-10008	High	8.8	20%	-	-
CVE-2024-50339	Medium	5.3	20%	-	Fix

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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 2025-04-11.