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CVE-2021-34414

24
FAUCET Score

CVE-2021-34414 describes a remote command injection vulnerability in the network proxy configuration page of several Zoom on-premise connector products, including Meeting, Recording, and Virtual Room Connectors, and the Virtual Room Connector Load Balancer. This flaw, rated High severity (CVSS 7.2), allows a web portal administrator to execute arbitrary commands due to insufficient input validation. While the attack requires administrator privileges, successful exploitation could lead to full compromise of the affected on-premise image. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.6.348.20201217CPE matchmatch criteria
cpe:2.3:a:zoom:meeting_connector:*:*:*:*:*:*:*:*
< 3.8.42.20200905CPE matchmatch criteria
cpe:2.3:a:zoom:recording_connector:*:*:*:*:*:*:*:*
< 4.4.6620.20201110CPE matchmatch criteria
cpe:2.3:a:zoom:virtual_room_connector:*:*:*:*:*:*:*:*
< 2.5.5495.20210326CPE matchmatch criteria
cpe:2.3:a:zoom:virtual_room_connector_load_balancer:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.52%
Probability of exploitation in next 30 days
EPSS Percentile
71.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0152 is in the 66th percentile among its peer group of 5,538 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

explore.zoom.us / en/trust/security/security-bulletin
Vendor Advisory