CVE-2021-34416 json
The network address administrative settings web portal for the Zoom on-premise Meeting Connector before version 4.6.360.20210325, Zoom on-p…
published 2021-09-27 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-21074
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- zoom meeting_connector 4.6.360.20210325
- zoom recording_connector 3.8.44.20210326
- zoom virtual_room_connector 4.4.6752.20210326
- zoom virtual_room_connector_load_balancer 2.5.5495.20210326
Exploit prediction
1.60% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- n/a Zoom On-Premise Meeting Connector Controller, Zoom On-Premise Meeting Connector MMR, Zoom On-Premise Recording Connector, Zoom On-Premise Virtual Room Connector, Zoom On-Premise Virtual Room Connector Load Balancer
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
explore.zoom.us
/en/trust/security/security-bulletin/
vendor-advisory
Sources
- CVE List CVE-2021-34416
- NVD CVE-2021-34416
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.