CVE-2023-39199: Zoom Meetings

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Cryptographic issues with In-Meeting Chat for some Zoom clients may allow a privileged user to conduct an information disclosure via network access.

Affected products

• Zoom Meetings: before 5.16.0 (fixed in 5.16.0)
• Zoom Rooms: before 5.16.0 (fixed in 5.16.0)
• Zoom Virtual Desktop Infrastructure: before 5.14.13 (fixed in 5.14.13); from 5.15.0, before 5.15.11 (fixed in 5.15.11)
• Zoom Zoom: before 5.16.0 (fixed in 5.16.0)

Published 2023-11-14. Last modified 2026-06-17.