CVE-2025-27439 Zoom Apps - Buffer Underflow
An authenticated user can escalate privileges via network access due to a buffer underflow in Zoom Workplace Apps.
- 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-2025-27439?
CVE-2025-27439 is a high-severity memory corruption vulnerability in Zoom Meeting Software Development Kit, published on 11 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Buffer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access.
Weakness: CWE-124
Which versions are affected by CVE-2025-27439?
It affects 6 products.
Products include Zoom Meeting Software Development Kit, Zoom Rooms, Zoom Rooms Controller, Zoom Workplace, Zoom Workplace Desktop, Zoom Workplace Virtual Desktop Infrastructure.
How do I fix CVE-2025-27439?
No fix has been published for CVE-2025-27439 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-27439 being exploited?
There is no known exploitation of CVE-2025-27439 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-48cg-hm45-pp65.