Vulnerability · Published Aug 11, 2022 · Assigned by Zoom

CVE-2022-28753Zoom On-Premise Deployments: Improper Access Control Vulnerability

High 7.1

In plain English

A high-severity improper access control in Zoom On-Premise Meeting Connector MMR from Zoom Video Communications Inc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.5%top 55.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Zoom On-Premise Meeting Connector MMR before version 4.8.129.20220714 contains an improper access control vulnerability. As a result, a malicious actor can join a meeting which they are authorized to join without appearing to the other participants, can admit themselves into the meeting from the waiting room, and can become host and cause other meeting disruptions.

Affected products (as reported)

Vendor	Product	Versions
Zoom Video Communications Inc	Zoom On-Premise Meeting Connector MMR	unspecified – before 4.8.129.20220714

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

References

https://explore.zoom.us/en/trust/security/security-bulletin/ x_refsource_MISC