A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.
https://bishopfox.com/blog/state-sonicwall-exposure-firmware-decryption-unlocks-insights
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0004