Is CVE-2020-4267 in the CISA KEV catalog?

No. CVE-2020-4267 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-4267?

CVE-2020-4267 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2020-4267?

CVE-2020-4267 has an EPSS score of 1.29% (67th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-4267?

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

CVE & CISA-KEV Catalog

CVE-2020-4267

MEDIUM

6.5

CVSS v3

NVD

Description

IBM MQ and MQ Appliance 8.0, 9.1 LTS, and 9.1 CD could allow an authenticated user cause a denial of service due to a memory leak. IBM X-Force ID: 175840.

CWE-401Missing Release of Memory (Memory Leak)

How to fix

Remediation Available

mqNVD

Affected:>= 8.0.0.0, < 8.0.0.14Fixed in:8.0.0.14CVE-2020-4267derived from NVD

Affected:>= 9.1.0.0, < 9.1.0.4Fixed in:9.1.0.4CVE-2020-4267derived from NVD

mq applianceNVD

Affected:>= 9.1.0, < 9.1.5Fixed in:9.1.5CVE-2020-4267derived 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

1.29%probability of exploitation in 30 days

67thpercentile

Moderate risk: more likely to be exploited than 67% of all known CVEs.

References

Vendor Advisory2

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	55%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	21%	-	-

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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.