CVE-2023-49646 Auth bypass in Zoom Clients
An authenticated user can cause a denial of service in Zoom clients due to improper authentication, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-49646?
CVE-2023-49646 is a medium-severity authentication bypass vulnerability in Zoom Meeting Software Development Kit, published on 13 Dec 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper authentication in some Zoom clients before version 5.16.5 may allow an authenticated user to conduct a denial of service via network access.
Which versions are affected by CVE-2023-49646?
It affects 4 products.
Products include Zoom Meeting Software Development Kit, Zoom Video Software Development Kit, Zoom Virtual Desktop Infrastructure, Zoom Zoom.
How do I fix CVE-2023-49646?
No fix has been published for CVE-2023-49646 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-49646 being exploited?
There is no known exploitation of CVE-2023-49646 in the wild and no public exploit code.
Other vulnerabilities in Zoom Meeting Software Development Kit
- CVE-2025-49457 Zoom Clients for Windows - Untrusted Search Path
- CVE-2024-24691 Privilege escalation in Zoom Desktop Client for Windows, Zoom VDI Client for Windows, and Zoom Meeting SDK for Windows
- CVE-2025-30663 Zoom Workplace Apps - Time-of-check Time-of-use
- CVE-2025-0147 Zoom Workplace App for Linux - Type Confusion
- CVE-2023-49647 Zoom Desktop Client for Windows - Improper Access Control
Sources
Also known as GHSA-786h-39x7-jgmj.