Improper HTTP Header Neutralization Vulnerability in SonicOS by SonicWall

CVE-2026-0516

What is CVE-2026-0516?

An improper neutralization of HTTP headers vulnerability in SonicOS could enable remote attackers to exploit the manipulation of the Host header. This flaw poses a significant risk by allowing attackers to redirect firewall management users to unauthorized web domains, potentially leading to phishing attacks or unauthorized access to sensitive information. Organizations using SonicOS are urged to review their firewall management configurations and apply appropriate security measures to mitigate this threat.

References