Is CVE-2021-34417 in the CISA KEV catalog?

No. CVE-2021-34417 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-34417?

CVE-2021-34417 has a CVSS v3 base score of 7.9 (HIGH).

What is the EPSS score for CVE-2021-34417?

CVE-2021-34417 has an EPSS score of 1.24% (66th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-34417?

Upgrade zoom on-premise meeting connector controller to 4.6.365.20210703 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-34417

HIGH

7.9

CVSS v3

NVD

Description

The network proxy page on the web portal for the Zoom On-Premise Meeting Connector Controller before version 4.6.365.20210703, Zoom On-Premise Meeting Connector MMR before version 4.6.365.20210703, Zoom On-Premise Recording Connector before version 3.8.45.20210703, Zoom On-Premise Virtual Room Connector before version 4.4.6868.20210703, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5496.20210703 fails to validate input sent in requests to set the network proxy password. This could lead to remote command injection by a web portal administrator.

CWE-20Improper Input Validation

How to fix

Remediation Available

zoom on-premise meeting connector controllerNVD

Affected:< 4.6.365.20210703Fixed in:4.6.365.20210703CVE-2021-34417derived from NVD

zoom on-premise meeting connector mmrNVD

Affected:< 4.6.365.20210703Fixed in:4.6.365.20210703CVE-2021-34417derived from NVD

zoom on-premise recording connectorNVD

Affected:< 3.8.45.20210703Fixed in:3.8.45.20210703CVE-2021-34417derived from NVD

zoom on-premise virtual room connectorNVD

Affected:< 4.4.6868.20210703Fixed in:4.4.6868.20210703CVE-2021-34417derived from NVD

zoom on-premise virtual room connector load balancerNVD

Affected:< 2.5.5496.20210703Fixed in:2.5.5496.20210703CVE-2021-34417derived 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 RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.24%probability of exploitation in 30 days

66thpercentile

Moderate risk: more likely to be exploited than 66% 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.