Is CVE-2021-34416 in the CISA KEV catalog?

No. CVE-2021-34416 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-34416?

CVE-2021-34416 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-34416?

CVE-2021-34416 has an EPSS score of 1.60% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-34416?

Upgrade meeting connector to 4.6.360.20210325 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-34416

CRITICALEPSS 73th pctl

9.8

CVSS v3

NVD

Description

The network address administrative settings web portal for the Zoom on-premise Meeting Connector before version 4.6.360.20210325, Zoom on-premise Meeting Connector MMR before version 4.6.360.20210325, Zoom on-premise Recording Connector before version 3.8.44.20210326, Zoom on-premise Virtual Room Connector before version 4.4.6752.20210326, and Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5495.20210326 fails to validate input sent in requests to update the network configuration, which could lead to remote command injection on the on-premise image by the web portal administrators.

CWE-20Improper Input Validation

How to fix

Remediation Available

meeting connectorNVD

Affected:< 4.6.360.20210325Fixed in:4.6.360.20210325CVE-2021-34416derived from NVD

recording connectorNVD

Affected:< 3.8.44.20210326Fixed in:3.8.44.20210326CVE-2021-34416derived from NVD

virtual room connectorNVD

Affected:< 4.4.6752.20210326Fixed in:4.4.6752.20210326CVE-2021-34416derived from NVD

virtual room connector load balancerNVD

Affected:< 2.5.5495.20210326Fixed in:2.5.5495.20210326CVE-2021-34416derived 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

AvailabilityHigh

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

Exploit Intelligence

1.60%probability of exploitation in 30 days

73rdpercentile

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

References

Vendor Advisory1

explore.zoom.us

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	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.