CVE advisoryKnown Exploit
CVE-2020-5135
SonicOS Denial of Service and Code Execution Vulnerability.
Halo Surface Signal: 5 out of 5 — more likely to be public-facing.
A buffer overflow in SonicOS permits external attackers to disrupt services or execute code by sending malicious requests. This impacts firewall systems, potentially affecting network availability and system integrity. The realistic business risk includes denial of service and unauthorized code execution.