Threat Intelligence
SonicWall SonicOS Scanning Surge in May 2026: The CVE-2026-0400 Early-Warning Pattern
GreyNoise recorded ~597,000 SonicWall SonicOS scanning sessions on May 12, 2026, roughly 46x baseline. The pattern echoes the recon waves that preceded CVE-2026-0400's disclosure. Here is how to read the signal.
May 20, 202611 min read