Is CVE-2020-3963 in the CISA KEV catalog?

No. CVE-2020-3963 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-3963?

CVE-2020-3963 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-3963?

CVE-2020-3963 has an EPSS score of 0.55% (42th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-3963?

Upgrade cloud foundation to 4.0.1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-3963

MEDIUM

5.5

CVSS v3

NVD

Description

VMware ESXi (7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202006401-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.2), and Fusion (11.x before 11.5.2) contain a use-after-free vulnerability in PVNVRAM. A malicious actor with local access to a virtual machine may be able to read privileged information contained in physical memory.

CWE-416Use After Free

How to fix

Remediation Available

cloud foundationNVD

Affected:>= 4.0.0, < 4.0.1Fixed in:4.0.1CVE-2020-3963derived from NVD

fusionNVD

Affected:>= 11.0.0, < 11.5.2Fixed in:11.5.2CVE-2020-3963derived from NVD

workstationNVD

Affected:>= 15.0.0, < 15.5.2Fixed in:15.5.2CVE-2020-3963derived 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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.55%probability of exploitation in 30 days

42ndpercentile

Moderate risk: more likely to be exploited than 42% of all known CVEs.

References

Exploit2

Vendor Advisory1

vmware.com

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	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 2024-11-21.