CVE-2026-47307: Samsung Walrus

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Samsung Walrus: version 2026-04-27 only

Published 2026-05-19. Last modified 2026-07-24.