CVE-2026-53413 Zoom Clients - Buffer Over-write
A missing bounds check in Zoom Clients allows a meeting participant to achieve remote code execution on another participant via network access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-53413?
CVE-2026-53413 is a high-severity memory corruption vulnerability in Zoom Clients, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Missing bounds check in the annotator function of Zoom Clients allows buffer over-write, which may allow a meeting participant to achieve remote code execution of another participant via network access.
Weakness: CWE-787
Which versions are affected by CVE-2026-53413?
How do I fix CVE-2026-53413?
No fix has been published for CVE-2026-53413 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-2026-53413 being exploited?
There is no known exploitation of CVE-2026-53413 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-wrrw-27ff-fj23.