CVE-2026-47307 Null dereference in Walrus
An attacker can cause a denial of service in Samsung Walrus by submitting a crafted WebAssembly module with deeply nested instructions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-47307?
CVE-2026-47307 is a medium-severity vulnerability in Samsung Open Source Walrus, published on 19 May 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
NULL pointer dereference vulnerability in Samsung Open Source Walrus allows an attacker to cause a denial of service via a crafted WebAssembly module containing deeply nested instructions.
This issue affects Walrus: f339b8ee4ea701772e8ae640b3d1b12ac02b1ae9.
Weakness: CWE-476
Which versions are affected by CVE-2026-47307?
It affects 1 product.
Products include Samsung Walrus.
How do I fix CVE-2026-47307?
No fix has been published for CVE-2026-47307 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-47307 being exploited?
There is no known exploitation of CVE-2026-47307 in the wild and no public exploit code.
Other vulnerabilities in Samsung Open Source Walrus
Sources
Also known as GHSA-9x57-pvwj-p59f.