Is CVE-2019-4656 in the CISA KEV catalog?

No. CVE-2019-4656 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-4656?

CVE-2019-4656 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2019-4656?

CVE-2019-4656 has an EPSS score of 1.62% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-4656?

Upgrade mq to 8.0.0.14 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2019-4656

MEDIUMEPSS 73th pctl

6.5

CVSS v3

NVD

Description

IBM MQ and IBM MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD is vulnerable to a denial of service attack that would allow an authenticated user to crash the queue and require a restart due to an error processing error messages. IBM X-Force ID: 170967.

How to fix

Remediation Available

mqNVD

Affected:>= 8.0.0.0, < 8.0.0.14Fixed in:8.0.0.14CVE-2019-4656derived from NVD

Affected:>= 9.1.0, < 9.1.4Fixed in:9.1.4CVE-2019-4656derived from NVD

Affected:>= 9.1.0.0, < 9.1.0.4Fixed in:9.1.0.4CVE-2019-4656derived from NVD

mq applianceNVD

Affected:>= 8.0.0.0, < 8.0.0.14Fixed in:8.0.0.14CVE-2019-4656derived 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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.62%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Vendor Advisory2

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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.