CVE-2018-15715

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-11-30 · updated 2026-06-17
Weakness: CWE-290

Description

Zoom clients on Windows (before version 4.1.34814.1119), Mac OS (before version 4.1.34801.1116), and Linux (2.4.129780.0915 and below) are vulnerable to unauthorized message processing. A remote unauthenticated attacker can spoof UDP messages from a meeting attendee or Zoom server in order to invoke functionality in the target client. This allows the attacker to remove attendees from meetings, spoof messages from users, or hijack shared screens.

Affected products

Zoom Video Communications, Inc. Zoom Desktop Client for Windows: through 2.4.129780.0915; before 4.1.34801.1116; before 4.1.34814.1119 — fixed in 4.1.34801.1116, 4.1.34814.1119

How to fix

Upgrade to a fixed version: Zoom Video Communications, Inc. Zoom Desktop Client for Windows 4.1.34801.1116, 4.1.34814.1119. Check the vendor advisory for mitigations.

References

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