CVE-2025-49464 Zoom Clients for Windows- Classic Buffer Overflow

Medium 6.5 Published 10 Jul 2025 Updated 10 Jul 2025

An authorized user can cause a denial of service in Zoom Windows clients via a classic buffer overflow vulnerability.

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-2025-49464?

CVE-2025-49464 is a medium-severity memory corruption vulnerability in Zoom Zoom, published on 10 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial of service via network access.

Weakness: CWE-120

Which versions are affected by CVE-2025-49464?

It affects 1 product.

Products include Zoom Zoom.

How do I fix CVE-2025-49464?

No fix has been published for CVE-2025-49464 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-2025-49464 being exploited?

There is no known exploitation of CVE-2025-49464 in the wild and no public exploit code.

All Zoom Zoom vulnerabilities

Sources

Also known as GHSA-734g-gx24-mvm2.