New SonicWall SonicOS Flaw Lets Attackers Crash Firewalls
⚠️ SonicWall has released patches for a high-severity SonicOS SSLVPN vulnerability (CVE-2025-40601) that can trigger a stack-based buffer overflow and remotely crash Gen7 and Gen8 firewalls. The company says the flaw allows a remote unauthenticated attacker to cause a DoS but reports no active exploitation or public PoC. Fixed versions are 7.3.1-7013+ for Gen7 and 8.0.3-8011+ for Gen8; admins unable to patch should disable SSLVPN or restrict access.
